| Rosa minutifolia | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Rosa |
| Species: | R. minutifolia |
| Binomial name | |
| Rosa minutifolia | |
Rosa minutifolia [1] [2] [3] is a species in the genus Rosa. It is also known by the common names Baja rose, [4] Baja littleleaf rose, [2] and small-leaved rose. [3]
Dense shrub or thicket-forming perennial, found in chaparral plant communities. In fact, it is exceptionally drought tolerant, particularly if given a thick layer of organic mulch; under drought stress the plant defoliates, exposing a small thicket of woody, and extremely spiny stems. [5]
Height/spread: 30–100 cm (1m) high and wide. [3]
Stems: Stems are low and arching, [2] with many, generally unpaired, straight, slender prickles measuring 2-12mm in length. [3]
Leaves: The leaves of Rosa minutifolia are the smallest of the genus Rosa , [2] with the terminal leaflets measuring 3-6mm long and wide. Leaves are round, widest near the middle, tip shape to obtuse, with toothed margins about halfway to the midvein, glandless. The leaf axil is finely short-hairy and sparsely glandular. Leaflets are hairy and number 5-7. [3]
Flowers: Inflorescences are generally one-flowered, pedicels are hairy and glandless, and measure to about 2-10mm in length. Flowers have a hypanthium to around 3mm wide. Densely prickly neck to 2mm wide. Sepals have toothed lateral lobes and are glandless, with the tip generally being about equal to the body, which is also toothed. Flowers typically contain 10 pistils each. Petals measure 10-20mm [3] and are deep pink, [2] [3] pale pink, or rarely white. Flowers appear in late winter, [2] February–April. [3] R. minutifolia is the earliest flowering of native California roses. [2]
Fruit: Fruit shape is typically spherical, about 5mm in width. Sepals persistent, erect to spreading; achenes unknown. [2]
Native to the chaparral plant community of northern Baja California, [2] [3] where wild populations are extant, and San Diego County, California, where it is now extinct in the wild. [2]
Rosa minutifolia is grown in gardens as an ornamental. [2]
'Minutifolia'– 'with very small leaves' from 'minuti', meaning 'minute', and 'folium', meaning 'leaves'. 'Rosa' from the Latin name 'rosa' meaning 'rose'. [6]
The name Rosa minutifolia was previously disputed, as some believed it to be in its own genus, Hesperhodos. [7] However, the name has since been resolved. [1]
Salvia mellifera is a small, highly aromatic, evergreen shrub of the genus Salvia native to California, and Baja California, Mexico. It is common in the coastal sage scrub of Southern California and northern Baja California. Black sage has a dark appearance, especially during drought.
Dendromecon rigida, also called bush poppy or tree poppy, is a shrub or small tree of the Papaveraceae native to California and Baja California.
Layia platyglossa, commonly called coastal tidytips, is an annual wildflower of the family Asteraceae, native to western North America.
Ribes malvaceum, the chaparral currant, is a member of the Grossulariaceae. It is native to California and northern Baja California, where it occurs from sea level to 1,500 metres (4,900 ft), in chaparral, foothill oak woodland, and closed-cone pine forest habitats.
Rosa nutkana, the Nootka rose, bristly rose, or wild rose is a 0.6–3.0-metre-tall (2–10-foot) perennial shrub in the rose family (Rosaceae).
Solanum xanti, known commonly as chaparral nightshade, purple nightshade, and San Diego nightshade, is a member of the genus Solanum. It is native to the Western United States in Arizona, California, Nevada, and Oregon, and to northwest Mexico in Baja California.
Rosa californica, the California wildrose, or California rose, is a species of rose native to the U.S. states of California and Oregon and the northern part of Baja California, Mexico. The plant is native to chaparral and woodlands and the Sierra Nevada foothills, and can survive drought, though it grows most abundantly in moist soils near water sources.
Dudleya edulis is a species of perennial succulent plant known by the common names fingertips, lady fingers, mission lettuce and the San Diego dudleya. The common name denotes the finger-like shape of the leaves, while the specific epithet edulis refers to the use of the young scapes as food by the Kumeyaay. It is native to Southern California and northern Baja California, and grows on rocky hillsides, cliffs, and bare rock.
Horkelia cuneata is a species of flowering plant in the rose family known by the common name wedgeleaf horkelia. It is endemic to California, where it grows in coastal chaparral communities and sandy areas. This is a matting or clumping perennial herb producing erect green or red stems up to 70 centimeters tall. The fernlike green leaves are up to 30 centimeters long and are made up of toothed, oval-shaped leaflets each one or two centimeters long. The foliage and stems are often quite hairy. The inflorescence holds several flowers, each with narrow, pointed bractlets and wider, reflexed sepals. The sepals and five white petals may be tinted with bright pink. The center of the flower holds ten stamens and up to 60 small pistils.
Horkelia truncata is a species of flowering plant in the rose family known by the common name Ramona horkelia. It is native to the Peninsular Ranges of southern California and northern Baja California, where it grows in the chaparral. This is a clumpy perennial herb forming tufts of erect leaves and stems. The leaves are up to 13 centimeters long and are made up of large oval-shaped leaflets with toothed edges and squared-off, toothed tips. The terminal leaflet of the leaf is sometimes untoothed. The thin stem is 20 to 60 centimeters tall and holds an inflorescence of several flowers. Each flower has short sepals beneath five round white petals. The center of the flower contains a ring of stamens around a patch of up to 80 thready pistils.
Acmispon argophyllus, synonym Lotus argophyllus, is a species of legume native to California and northwest Mexico. It is known by the common name silver bird's-foot trefoil or silver lotus.
Ranunculus hebecarpus is a species of buttercup known by the common name delicate buttercup. It is native to western North America, including several of the western United States and Baja California, where it grows in grassland, woodland, and chaparral habitat. It is an annual herb producing a slender, hairy stem a few centimeters high or up to 30 centimeters tall. The hairy leaves are borne on long petioles. Their blades are deeply lobed or divided into three leaflets, often with toothed or lobed edges. Flowers have 3 to 5 tiny yellow petals just 1 or 2 millimeters long studded on the bulbous nectary; some flowers lack petals. The plant is most easily identified in its fruiting stage, when the infructescence is a spherical cluster of several tiny disc-shaped achenes with compressed, bristly sides.
Rhamnus ilicifolia is a species of flowering plant in the buckthorn family known by the common name hollyleaf redberry. It is native to western North America, where it is a common plant growing in many types of habitat, including chaparral and wooded areas, from Oregon through California, to Baja California and Arizona.
Ribes canthariforme is a rare species of currant commonly known as the Moreno currant. It is characterized by pink to red flowers, a dense inflorescence, and a lack of nodal spines. A little-known endemic to the mountains of San Diego County, it is usually found growing the shade of massive boulders in the chaparral. Although the rarity and small numbers of this plant is a conservation concern, it is usually found in remote areas and is well hidden enough to be safe from most threats.
Ribes indecorum is a species of currant known by the common names white-flowered currant and white chaparral currant. It is native to the southern California Coast Ranges, Transverse Ranges, and Peninsular Ranges, from around Santa Barbara County in California south into northern Baja California.
Rosa bridgesii is a species of rose known by the common names pygmy rose and Sierran dwarf rose. It is native to California, where it grows in the forests of the Sierra Nevada and surrounding mountains and foothills. It may also occur in Oregon.
Rosa pisocarpa is a species of rose known by the common name cluster rose or swamp rose. It is native to western North America from British Columbia to northern California, where it generally grows in moist habitats. It is a shrub sometimes forming a thicket, and growing up to 2.5 meters tall. The stems can be dark red or blackish and are often studded with straight, paired prickles at nodes. The leaves are each made up of several toothed oval leaflets, the terminal leaflet up to 4 centimeters long. The inflorescence is a cyme of up to 10 flowers with pink petals each up to 2 centimeters in length. The fruit is a rose hip about a centimeter wide. The hips are pear- or egg-shaped and borne in clusters, and are decorative in fall and early winter, when they are red or reddish-purple and contrast with yellow foliage. Fall foliage can be yellow or dark red.
Rosa spithamea is a species of rose known by the common names ground rose and coast ground rose. It is native to Oregon and California, where it grows in forest and chaparral habitats, especially areas recently burned.
Rupertia rigida is a species of flowering plant in the legume family known by the common name Parish's California tea, or Parish's rupertia.
Trifolium albopurpureum is a species of clover known by the common name rancheria clover.
