Paeonia brownii

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Paeonia brownii
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Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Saxifragales
Family: Paeoniaceae
Genus: Paeonia
Species:
P. brownii
Binomial name
Paeonia brownii

Paeonia brownii is a low to medium height, herbaceous perennial flowering plant in the family Paeoniaceae. [1] It has compound, steely-gray, somewhat fleshy leaves and small drooping maroon flowers. Its vernacular name is Brown's peony, native peony or western peony. It is native to the western United States and usually grows at altitude, often as undergrowth in part-shade. The fleshy roots store food to carry the plant through the dry summers and produce new leaves and flowers the following spring.

Contents

Description

Paeonia brownii is a glaucous, summer hibernating, perennial herbaceous plant of 25–40 cm high with up to ten stems per plant, which grow from a large, fleshy root. Each pinkish stem is somewhat decumbent and has five to eight twice compound or deeply incised, bluish green, hairless, somewhat fleshy leaves which may develop purple-tinged edges when temperatures are low. The blades of the leaflets or segments are oval to inverted egg-shaped, 3-6 × 2–5 cm, with a clearly narrowed, stalk-like foot and an stump or rounded tip. The bisexual flowers are cup-shaped, 2–3 cm when open, nodding, and are set individually at the tip of a branching stem, and bloom for 9–15 days. Flowering occurs from March to June (mostly mid-April to mid-May). The five or six overlapping sepals are a purplish green, cupped, and oval or almost circular, persist after flowering. The five to ten circular petals are usually shorter than the sepals, and grade in colour from brownish-maroon at the base, via wine red to greenish or yellowish on the edge. Each flower has 60-100 yellow stamens, consisting of filaments of 3–5 mm, that are topped by anthers of 2–4 mm long. These open in succession from the inside out shedding yellow pollen, starting from the second day. A disc consisting of about twelve fleshy cone-shaped greenish-yellow lobes of 2½-3 mm high surrounds the two to six (mostly five) glabrous, initially yellow-green to ultimately yellow-red carpels, each having a short style topped by a curved stigma that forms a ridge. These are receptive during the first two days that the flower is open. Fertilised carpels mature into 2–4 cm long follicles that have become leathery when ripe. About four seeds develop per follicle, which are yellowish-brown to black, round to oval and 6–11 mm in diameter. As all diploid peonies, Paeonia brownii has ten chromosomes (2n=10). [2] [3] [4]

Brown's peony is most closely related to, and closest in appearance to the California peony, with which it constitutes the section Onaepia. Common characters include having rather small drooping flowers, with small petals and a very prominent disk which usually consists of separate segments, while the seeds are cylindrical rather than ovoid. P. browniii can still be easily distinguished from P. californica however, the latter having 35–75 cm high stems bearing seven to twelve leaves which are green, while the leaflet blade gradually eases into the leaflet stalk or lacks such a stalk all together, and the finest lobes are lanceolate or narrowly elliptic. P. brownii is usually only 20–40 cm high, has six to eight glaucous leaves per stem that suddenly narrow at their base and the finest segments are egg-shaped. In P. californica the petals are egg-shaped, and about 1½-2½ cm long, reaching beyond the sepals, while in P. brownii the petals are circular or wider than long, and about ¾-1½ cm long, definitely shorter than the sepals. [5]

Taxonomy

Paeonia brownii was first described in 1829 by David Douglas in the Flora boreali-americana which was edited by Hooker. No synonyms for this scientific name are known. Paeonia californica has been regarded a subspecies of P. brownii, but there are several morphological differences, the environmental circumstances in which each grows are different and the distributions of both species do not overlap, so currently there seems to be consensus that both need to be regarded as separate species. [6]

Paeonia brownii and P. californica together make up the section Onaepia of the genus Paeonia. Precise relationships between the three sections remain ambiguous, and can be represented by the following phylogenetic tree. [7] [8]

genus Paeonia
section Paeoniae

all Eurasian herbaceous peonies

section Moutan
subsection Vaginatae

all other tree peonies

subsection Delavayanae
section Onaepia

P. brownii

P. californica

Etymology

The species is named after Scottish botanist Robert Brown. [9]

Distribution

Brown's peony grows in open dry pine forests such as stands of ponderosa pine, in sagebrush, in mountain brush, and in aspen stands at elevations of 200–3,000 m, where winters are long and cold, with little to no snow cover and the growing season is short. It occurs in northern California, Idaho, Montana, Nevada, Oregon, Utah, Washington and Wyoming. It is not native to Canada. [3] [10]

P. brownii is very specific when it comes to soil conditions. It will not thrive where the soil is excessively wet, nor if the soil becomes too dry. It performs best in well-drained situations. [11]

Ecology

fruits Paeonia brownii folicles.jpg
fruits
seeds Paeoniabrownii.jpg
seeds

In the Blue Mountains at about 1050 m altitude, P. brownii grows in an upland prairie on basalt-substrate close to conifer stands. In addition to a variety of grasses, the surrounding vegetation includes western monkshood, Hooker's and arrowleaf balsamroot, redstem ceanothus, pinkfairies, hairy clematis, dwarf larkspur, parsnipflower buckwheat, fernleaf and nineleaf biscuitroot, sulphur lupine, beardtongues species, virgate scorpion-weed, sticky and slender cinquefoil, sagebrush buttercup, dwarf and Nootka rose, common snowberry, American vetch and northern mule's ears. Brown's peony avoids drought by dying down completely in early summer, after flowering and surviving underground with stores of nutrients and energy in its thick rootstock. [4] When parts of the plant are broken, bruised or damaged by predation it produces a pronounced bitter and unpleasant scent. Plants are rarely eaten, but caterpillars of the species Euxoa ustula, dark grey fishia and small heliothodes moth have been found to eat 1–2 mm holes in the flowers, although these species are better known from other host plants. Flowers give off the same smell more weakly and the lobes of the disc secrete a sweet nectar with a bitter aftertaste over the entire time the stigmas and anthers are fertile. [2]

Pollination

According to one source, wasps, such as the common aerial yellowjacket and Polistes aurifer, and sweat bees, in particular, Lasioglossum species, make up the majority of pollinators, in addition to hoverflies such as Criorhina caudata . [2] Bernhardt et al., after studying an endemic population in Oregon's Blue Mountains, stated:

The most common pollen vectors were wasp queens in the family Vespidae , the large flower fly Criorhina caudata (Syrphidae), and females of various Lasioglossum species (Halictidae), all of which foraged exclusively for nectar.

Although this plant produces a significant amount of pollen, the insects that pollinated it sought it for nectar. The study's authors argued that it is unlikely that the vespid wasps co-evolved with the plant, although they do benefit it by preying on moth larvae which consume it. [12] The plant is a hexose-type nectar producer, with glucose being its primary sugar. [12] The Lepidoptera typically seek sucrose-producing flowers. This plant also uses what the researchers described as an "unpleasant odor" to increase pollinator selectivity. [12]

Seed dispersal

P. brownii seed is, in part, dispersed by rodents, which harvest seeds from the ripe, hanging fruit and store these in small caches up to 20 m away. In Washoe County, Nevada, the yellow-pine chipmunk, deer mouse, and the Great Basin pocket mouse have been observed to do this. The seeds, however, are not considered to be a choice food item, compared to pine kernels, which contain much more fat and protein. Abandoned seeds will germinate early in the next year, following the winter stratification, which breaks their dormancy. [13]

Cultivation

Brown's peony is rarely cultivated because it has limited ornamental value due to its few and small flowers and the difficulty to grow it. It is highly intolerant of water during its summer dormancy. It is advised to place this plant in an area of the garden with superb drainage and sheltered from summer rains. Paeonia brownii tolerates sand. [4]

Uses

Native Americans made the roots into a tea to treat lung illnesses. [14]

The roots of P. brownii can be eaten for its nutrient content. Indigenous tribe members would also use them as a medicine to cure cough, kidney problems, sexually transmitted infections, pneumonia, nausea, indigestion and tuberculosis. [15]

Related Research Articles

<span class="mw-page-title-main">Peony</span> Genus of flowering plants in the family Paeoniaceae

The peony or paeony is any flowering plant in the genus Paeonia, the only genus in the family Paeoniaceae. Peonies are native to Asia, Europe, and Western North America. Scientists differ on the number of species that can be distinguished, ranging from 25 to 40, although the current consensus describes 33 known species. The relationships between the species need to be further clarified.

<i>Prasophyllum</i> Genus of flowering plants

Prasophyllum, commonly known as leek orchids, is a genus of about 140 species of flowering plants in the orchid family, Orchidaceae and is found in Australia and New Zealand. The Australian species are found in all states but have not been recorded in the Northern Territory. The common name arises from their having a hollow, leek- or onion-like leaf. Some species only flower after summer fires and have flowers similar to those of Xanthorrhoea which flower at the same time, suggesting that they employ the same pollinating insects. Leek orchids are similar to those in the genus Genoplesium except that the free part of the leaf is cylindrical and the labellum has a solid connection to the column. They range in size from the little laughing leek orchid at about 15 cm (6 in) to the king leek orchid which grows up to 2 m (80 in) tall.

<i>Paeonia californica</i> Species of tree

Paeonia californica is a perennial herbaceous plant of 35–70 cm high, that retreats underground in summer, and reoccurs with the arrival of the winter rains. It has lobed leaves, elliptic (cup-shaped) drooping flowers with dark maroon-colored petals, and many yellow anthers. It flowers mostly from January to March, and later develops two to five fruits per flower. Its common name is California peony and it is sometimes also referred to as wild peony. This peony is an endemic of southwestern California (USA), where it is not rare, and northernmost Baja California (Mexico). It grows on dry hillsides in the coastal sage scrub and chaparral communities of the coastal mountains of Southern and Central California, often as an understory plant.

<i>Paeonia obovata</i> Species of flowering plant

Paeonia obovata is a perennial herbaceous species of peony growing 30–70 cm high. It has white, pink or purple-red flowers and its lower leaves consist of no more than nine leaflets or segments. In English it is sometimes called woodland peony. It grows naturally in warm-temperate to cold China, including Manchuria, and in Korea, Japan, Far Eastern Russia and on Sakhalin.

<i>Paeonia emodi</i> Species of plant

Paeonia emodi is a robust herbaceous perennial plant that winters with buds underground, has large white flowers and large, deeply incised leaves. It belongs to the family Paeoniaceae. Its local vernacular names include mamekhor or mamekh (Punjabi), ood-e-saleeb (Urdu) meaning "with-a-cross", ood salap (Hindi), mid and 多花芍药 meaning "multi-flower peony". In English it is sometimes called Himalayan peony. It is among the tallest of the herbaceous peony species, and, while cold-hardy, it grows better in warm, temperate climates. It is a parent of the popular hybrid 'White Innocence', which reaches 1½ m.

<i>Paeonia veitchii</i> Species of flowering plant

Paeonia veitchii is a species of herbaceous perennial peony. The vernacular name in China is 川赤芍. This species is ½-1 m high, has a thick irregular taproot and thin side roots, and deeply incised leaves, with leaflets themselves divided in fine segments. It has two to four fully developed flowers per stem, that may be pink to magenta-red or rarely almost white. It is known from central China.

<i>Paeonia delavayi</i> Shrub in the family Paeoniaceae from southwest China

Paeonia delavayi is a low woody shrub belonging to the peonies, that is endemic to China. The vernacular name in China is 滇牡丹. In English it is called Delavay's tree peony, Delavay peony, Dian peony, and dian mu dan. It mostly has red brown to yellow, nodding flowers from mid May to mid June. The light green, delicate looking deciduous leaves consist of many segments, and are alternately arranged on new growth.

<i>Paeonia ludlowii</i> Shrub in the family Paeoniaceae from southeast Tibet

Paeonia ludlowii, is a deciduous shrub of medium height, belonging to the tree peony section Moutan of the genus Paeonia, and endemic to southeast Tibet. In Tibet it is known as ≠'lumaidao' meaning "God's flower". The vernacular name in Chinese is 大花黄牡丹 meaning "big yellow-flowered peony". In English it is sometimes called Tibetan tree peony or Ludlow's tree peony. It has pure yellow, slightly nodding, bowl-shaped flowers, and large, twice compounded, light green leaves.

<i>Lyperanthus</i> Genus of orchids

Lyperanthus, commonly known as beak orchids, is a genus of flowering plants from the orchid family, Orchidaceae, that is endemic to Australia. There are two species, one in Western Australia and the other in four eastern Australian states, distinguished by their single long, narrow, leathery leaf and dull coloured flowers which have prominent short calli on their labellum. Both form loose colonies which reproduce asexually from their tubers, and sexually using their flowers.

<i>Paeonia mairei</i> Species of flowering plant

Paeonia mairei is a species of peony, that is endemic to the mountains of central China. Its vernacular name in China is 美丽芍药 meaning "beautiful peony". The plant may be between 45 and 100 cm high and has mostly rose-pink flowers of about 10 cm across, one on each stem. P. mairei blooms in early spring.

Paeonia sterniana is a perennial, herbaceous peony of approximately 45 cm high in cultivation, with white or sometimes pinkish flowers. It grows in the wild in southeastern Tibet. This peony is very rare in cultivation. It produces blue seeds in autumn. Its common name in Chinese is 白花芍药, which means "white peony".

<i>Paeonia tenuifolia</i> Species of plant

Paeonia tenuifolia is a herbaceous species of peony that is called the steppe peony or the fern leaf peony. It is native to the Caucasus Mountains, with large fields found in Vashlivani National Park in Georgia and the Black Sea coast of Ukraine, spreading westward into Bulgaria, Romania and Serbia and eastward to northwestern Kazakhstan. It was described by Linnaeus in 1759. The leaves are finely divided into almost thread-like segments and grow close together on the stems. This peony can reach 30–60 cm (12–24 in) in height. The scented red flowers have numerous yellow stamens in the centre.

<i>Paeonia broteri</i> Species of plant in the family Paeoniaceae

Paeonia broteri is a perennial, herbaceous species of peony. It is an endemic species of the Iberian Peninsula. It bears rose-pink highly fragrant flowers about 12 cm wide and glossy green leaves. It reaches up to 40 centimetres (16 in) in height.

<i>Paeonia clusii</i> Species of plant

Paeonia clusii is a relatively low (25–50 cm) species of herbaceous peony with scented, white or pink flowers of up to 12 cm in diameter. In the wild, the species can only be found on the islands of Crete and Karpathos, and Rhodes. It has pinkish-purple stem up to 30 cm long and glaucous dissected leaves. P. clusii blooms in mid-spring.

<i>Paeonia cambessedesii</i> Species of flowering plant

Paeonia cambessedesii is a perennial herbaceous species of peony about 45 cm high. It has pink flowers. The stems, major veins and undersides of the leaves remain purple red, while the upper surface of the leaves turns into a metallic bluish green when fully grown and its lower leaves consist of no more than nine leaflets or segments. This endemic of the Balearic Islands is now limited to parts of northeastern and northwestern Majorca. In English it is sometimes called Balearic peony or Majorcan peony.

<i>Paeonia anomala</i> Species of flowering plant

Paeonia anomala is a species of herbaceous perennial flowering plant in the family Paeoniaceae. This peony is ½–1 m high, with a thick irregular taproot and thin side roots. The deeply incised leaves have leaflets which are themselves divided in fine segments. It flowers in early summer, almost always with only one fully developed flower per stem, magenta-red or rarely pink or white. The species occurs in a zone between northern European Russia and northern Mongolia and south to the Tien Shan Mountains.

<i>Paeonia daurica</i> Species of flowering plant

Paeonia daurica is a perennial herbaceous plant belonging to the peony family. It has slender carrot-shaped roots, leaves mostly consisting of nine leaflets, with one flower per stem. The flower is subtended by none to two leafy bracts, and has two or three sepals, five to eight petals, and many stamens. The subspecies vary in the colour of the petals, the size and shape of the leaflets, and the hairiness of the leaflets and the carpels. Paeonia daurica can be found from the Balkans to Iran, and the Crimea to Lebanon, with the centre of its distribution in the Caucasus. It is also cultivated as an ornamental.

<i>Paeonia corsica</i> Species of flowering plant

Paeonia corsica, also known as the Corsican peony, is a perennial herbaceous plant of 35–80 cm (14–31 in) high that belongs to the peonies. It naturally occurs on Corsica, Sardinia, on the Ionian islands and in western Greece. It has hairless green to purple stems, and the lower leaves consist mostly of nine leaflets with undersides which may carry felty hairs or are hairless. Its flowers have pink petals and purple filaments. Its vernacular name in Italian is peonia Corsa, and in French pivoine de Corse, both meaning "Corsican peony".

<i>Paeonia algeriensis</i> Species of plant

Paeonia algeriensis, also known as the Algerian peony, is a herbaceous species of peony that naturally occurs in the coastal mountain range of Algeria (Kabylie). It has solitary flowers with pink to magenta petals and one or two carpels per flower, that develop into follicles of about 5 cm long.

<i>Paeonia coriacea</i> Species of flowering plant

Paeonia coriacea, also known as the Andalusian peony, is a species of flowering plant within the family Paeoniaceae.

References

  1. Sierra Nevada Wildflowers, Karen Wiese, 2nd ed., 2013, p. 102
  2. 1 2 3 Bernhardt, Peter; Meier, Retha; Vance, Nan (2013). "Pollination ecology and floral function of Brown's peony (Paeonia brownii) in the Blue Mountains of northeastern Oregon". Journal of Pollination Ecology. 11 (2): 9–20. doi: 10.26786/1920-7603(2013)2 .
  3. 1 2 "Paeonia brownii". efloras – Flora of North America. Retrieved 2016-06-17.
  4. 1 2 3 Ben Wilson. "Paeonia brownii". Las Pilitas Nursery. Retrieved 2016-06-17.
  5. Stebbins, G. Ledyard Jr. (1938). "The Western American species of Paeonia". Madroño. 4: 252–260.cited on "The Western American species of Paeonia". Paeon. Retrieved 2016-06-13.
  6. "Paeonia brownii". The Plantlist. Retrieved 2016-06-18.
  7. Sang, Tao (1996). Phylogeny and Biogeography of Paeonia (PAEONIACEAE), dissertation. The Ohio State University.cited on "Tao Sang, DISSERTATION, chapter 4". Paeon. Retrieved 2016-05-19.
  8. Sang, T.; Donoghue, M.J.; Zhang, D. (1997). "Evolution of alcohol dehydrogenase genes in peonies (Paeonia): phylogenetic relationships of putative nonhybrid species". Molecular Biology and Evolution. 14 (10): 994–1007. doi: 10.1093/oxfordjournals.molbev.a025716 . PMID   9335140.
  9. Halda, Josef J.; Waddick, James W. (2004). The Genus Paeonia. Timber Press. pp. 196–205. ISBN   978-0-88192-612-5.
  10. "Western peony". CNPS. Retrieved 2016-06-17.
  11. "Paeonia brownii - Useful Temperate Plants". temperate.theferns.info. Retrieved 2021-03-02.
  12. 1 2 3 Bernhardt, Peter; Meier, Retha; Vance, Nance (2013). "Pollination ecology and floral function of Brown's peony (Paeonia brownii) in the Blue Mountains of northeastern Oregon" (PDF). Journal of Pollination Ecology. 11 (2): 9–20. doi: 10.26786/1920-7603(2013)2 . Retrieved 16 November 2018.
  13. Barga, Sarah C.; Vander Wall, Stephen B. (2013). "Dispersal of an herbaceous perennial, Paeonia brownii, by scatter-hoarding rodents" (PDF). Écoscience. 20 (2): 172‒181. doi:10.2980/20-2-3594. S2CID   83865566 . Retrieved 2016-06-17.
  14. Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p.  572. ISBN   0-394-73127-1.
  15. "Paeonia brownii Brown's Peony PFAF Plant Database". pfaf.org. Retrieved 2021-03-02.