Hemiphora exserta

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Hemiphora exserta
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Hemiphora
Species:
H. exserta
Binomial name
Hemiphora exserta
(Benth.) B.J.Conn & M.J.Henwood [1]
Map.Hemiphora exserta.jpg

Hemiphora exserta is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a sprawling shrub with its branches densely covered with white, woolly hairs. Its leaves are rough and wrinkled and the flowers are deep pink or dark red, curved and tube-shaped with spreading petal lobes on the end.

Contents

Description

Hemiphora exserta is a sprawling shrub which grows to a height of 15–40 cm (6–20 in) with its branches covered with woolly hairs but which become glabrous with age. The leaves are linear to narrow lance-shaped, 8–40 mm (0.3–2 in) long, 1–4 mm (0.04–0.2 in) wide, with their edges strongly curved downwards. The upper surface is rough and wrinkled with small blisters and the lower surface is covered with short, soft hairs when young. [2] [3]

The flowers are arranged singly or in groups of up to three on woolly stalks 2–4 mm (0.08–0.2 in) long, in upper leaf axils. There are bracts 10–15 mm (0.4–0.6 in) long at the base of the flowers and which are glabrous on the inner surface and densely woolly outside, and there are shorter, glabrous bracteoles. The five sepals are 8–12 mm (0.3–0.5 in) long, and joined at their base to form a short tube. The sepals are scaly on the outside, linear to lance-shaped and remain attached to the plant after the petals have fallen. The petals are deep pink to dark red, 20–30 mm (0.8–1 in) long and joined to form a downward-curving tube, 13–17 mm (0.5–0.7 in) long and 5–6 mm (0.20–0.24 in) wide at the top end. The petal tube has soft hairs on the outside but glabrous inside except for a densely hairy ring around the ovary. The five petal lobes form two "lips", the upper lip with two short lobes and the lower with three. The lower central lobe is almost twice as large as the other four, elliptic to almost circular in shape, 9–11 mm (0.35–0.43 in) long and wide while the others are more or less egg-shaped. The four stamens are about the same length as the petal tube with the lower pair longer than the upper pair. Flowering occurs from June to November and the fruit is almost spherical, hairy and 3–4 mm (0.1–0.2 in) in diameter. [2] [3]

Taxonomy and naming

This species was first formally described in 1870 by George Bentham who gave it the name Pityrodia uncinata var. exserta. The description was published in Flora Australiensis . [4] [5] In 1979, Ahmad Abid Munir raised the variety to species status as Pityrodia exserta, [6] but in 2011, Barry Conn, Murray Henwood and Nicola Streiber transferred four species, including this one, from the genus Pityrodia into Hemiphora. [1] [7] The specific epithet (exserta) is a Latin word meaning "projecting" or "thrust forward". [8]

Distribution and habitat

Hemiphora exserta is found in the Fitzgerald River National Park in the Esperance Plains biogeographic region [2] [3] where it grows on rocky slopes and undulating plains. [9]

Conservation

Hemiphora exserta is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [3]

Related Research Articles

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

Dasymalla is a genus of five species of flowering plants in the mint family, Lamiaceae and is endemic to Western Australia. Plants in this genus are woolly shrubs with five petals joined to form a tube-shaped flower with four stamens of unequal lengths. These species are similar to those in the genus Pityrodia except that the fruit does not release its seeds when mature.

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

Hemiphora is a genus of five species of flowering plants in the mint family, Lamiaceae and is endemic to Western Australia. Plants in this genus are woolly shrubs with warty, hairy leaves and with five petals joined to form a tube-shaped flower with four stamens. These species are similar to those in the genus Chloanthes in that the base of the leaves extends down the stem. They differ from Chloanthes, in that the leaves only extend a short distance down the stem.

Dasymalla axillaris, commonly known as native foxglove or woolly foxglove, is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is a small, diffuse shrub with its branches, leaves and some of its flower parts densely covered with white, woolly hairs. The flowers are a shade of red and tube-shaped with the stamens and style extending beyond the end of the five petals.

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

Muniria is a genus of four species of flowering plants in the mint family, Lamiaceae and is endemic to the Northern Territory in Australia. Plants in this genus are woolly shrubs with five petals joined to form a tube-shaped flower with four stamens of unequal lengths. These species are similar to those in the genus Pityrodia except that the branches are distinctly 4-angled in cross section and the fruit has calluses or ridges.

<i>Quoya atriplicina</i> Species of flowering plant

Quoya atriplicina, commonly known as saltbush foxglove, is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is a bushy shrub with its branches and leaves densely covered with a layer of hairs, giving them a greyish appearance. The leaves are broad-elliptic to almost circular in shape and the tube-shaped flowers are pink with purple spots inside.

<i>Quoya oldfieldii</i> Species of flowering plant

Quoya oldfieldii, commonly known as Oldfield's foxglove, is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is an erect shrub with its branches and leaves densely covered with a layer of brownish hairs. The leaves are egg-shaped and the tube-shaped flowers are pink with purple spots inside.

Dasymalla chorisepala is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia and the Northern Territory. It is a small shrub with its branches and leaves densely covered with hairs. The leaves are stalkless, egg-shaped and covered with yellowish hairs while the flowers are small, tube-shaped and white.

<i>Dasymalla teckiana</i> Species of flowering plant

Dasymalla teckiana is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is a small, openly branched, sticky shrub with mauve and white, bugle-shaped flowers.

<i>Muniria quadrangulata</i> Species of shrub

Muniria quadrangulata is a flowering plant in the mint family Lamiaceae and is endemic to Arnhem Land in the Northern Territory. It is a shrub with its branches and leaves covered with a thick layer of woolly hairs and pale yellow flowers in groups of up to nine, surrounded by woolly hairs.

<i>Hemiphora bartlingii</i> Species of flowering plant

Hemiphora bartlingii, commonly known as woolly dragon, is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is an erect shrub with branches covered with greyish, rusty-coloured hairs, leaves with a blistered appearance and with white, pink or purple flowers over an extended period.

Muniria angustisepala is a flowering plant in the mint family Lamiaceae and is endemic to the Northern Territory. It is an erect shrub with softly hairy, warty leaves and pale yellow, woolly flowers.

<i>Hemiphora elderi</i> Species of flowering plant

Hemiphora elderi, commonly known as red velvet, is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a small shrub with its leaves densely covered with white, woolly hairs and with small clusters of reddish-purple, bell-shaped flowers.

<i>Quoya dilatata</i> Species of flowering plant

Quoya dilatata is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is a low, spreading shrub with its branches and leaves densely covered with a layer of white, woolly hairs. The leaves are wrinkled or crinkly and the tube-shaped flowers are orange-red and hairy on the outside.

Muniria lanceolata is a flowering plant in the mint family Lamiaceae and is endemic to Arnhem Land in the Northern Territory. It is a shrub with its branches and leaves densely covered with a layer of short, greyish, branched hairs and red flowers near the ends of the branches.

Muniria megalophylla is a flowering plant in the mint family Lamiaceae and is endemic to Arnhem Land in the Northern Territory. It is a shrub with its branches and leaves densely covered with a layer of short, greyish, branched hairs and small groups of reddish-pink flowers near the ends of the branches.

<i>Hemiphora lanata</i> Species of flowering plant

Hemiphora lanata is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is a sprawling shrub with its branches and leaves densely covered with white, woolly hairs and with deep pink or dark red, curved, tube-shaped flowers with spreading petal lobes on the end. It is similar to Hemiphora exserta except for its cottony leaf-covering and its longer stamens.

<i>Hemiphora uncinata</i> Species of flowering plant

Hemiphora uncinata is a flowering plant in the mint family Lamiaceae and is endemic to the south-west of Western Australia. It is an erect, spreading shrub with its branches densely covered with white, woolly hairs. Its leaves are rough and wrinkled and the flowers are tube-shaped with deep pink petals with wavy edges.

<i>Quoya loxocarpa</i> Species of flowering plant

Quoya loxocarpa is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia and the Northern Territory. It is an open shrub with many spindly tangled branches. The leaves are oblong and woolly when young and the flowers are whitish pink with purple spots inside and are surrounded by woolly sepals.

Quoya paniculata is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is a shrub with its branches and leaves densely covered with a layer of woolly hairs. The flowers are usually arranged in small groups surrounded by woolly hairs and are bell-shaped and deep purple or deep lilac. It is similar to Dasymalla axillaris and D. terminalis but is distinguished from them by its wedge-shaped leaf ends and more northerly distribution.

<i>Quoya verbascina</i> Species of flowering plant

Quoya verbascina, commonly known as golden bush, is a flowering plant in the mint family Lamiaceae and is endemic to Western Australia. It is an erect shrub with its branches and leaves densely covered with woolly hairs. The leaves are often oblong but very variable in shape and the flowers are pinkish-white with pink spots inside and are surrounded by yellow woolly sepals.

References

  1. 1 2 "Hemiphora exserta". APNI. Retrieved 7 January 2017.
  2. 1 2 3 Munir, Ahmad Abid (1978). "A taxonomic revision of the genus Hemiphora (Chloanthaceae)". Journal of the Adelaide Botanic Garden. 1 (3): 41–43.
  3. 1 2 3 4 "Hemiphora exserta". FloraBase. Retrieved 7 January 2017.
  4. ↑ "Pityrodia uncinata var. exserta". APNI. Retrieved 7 January 2017.
  5. ↑ Bentham, George (1870). Flora Australiensis (Volume 5). London: Lovell Reeve and Co. p. 49. Retrieved 7 January 2017.
  6. ↑ "Pityrodia exserta". APNI. Retrieved 7 January 2017.
  7. ↑ Conn, Barry J.; Henwood, Murray J.; Streiber, Nicola (2011). "Synopsis of the tribe Chloantheae and new nomenclatural combinations in Pityrodia s.lat. (Lamiaceae)". Australian Systematic Botany. 24 (1): 1–9. doi:10.1071/SB10039.
  8. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 312.
  9. ↑ Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue . Perth: Wildflower Society of Western Australia. p. 214. ISBN   0646402439.
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