| Bossiaea laxa | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Bossiaea |
| Species: | B. laxa |
| Binomial name | |
| Bossiaea laxa | |
Bossiaea laxa is a species of flowering plant in the family Fabaceae and is endemic to a small area near Norseman in Western Australia. It is a spreading, openly-branched shrub with linear to narrow oblong leaves, and bright yellow and red flowers.
Bossiaea laxa is a spreading, openly-branched shrub that typically grows up to a height of up to 2 m (6 ft 7 in) and has branchlets that are flattened to oval in cross-section. The leaves are linear to narrow oblong, 10–32 mm (0.39–1.26 in) long and 0.7–2.5 mm (0.028–0.098 in) wide on a petiole 0.6–2.0 mm (0.024–0.079 in) long with triangular stipules 1.0–1.5 mm (0.039–0.059 in) long at the base. The flowers are arranged singly or in small groups, each flower on a thread-like pedicel 7–20 mm (0.28–0.79 in) long. There is only a single bracts up to 1 mm (0.039 in) long but that falls off at the bud stage. The five sepals are joined at the base forming a tube 4.6–5.5 mm (0.18–0.22 in) long with lobes 1–2 mm (0.039–0.079 in) long, with oblong bracteoles 1.5–2.4 mm (0.059–0.094 in) long on the pedicel. The standard petal is bright yellow with a faint red base and 12–16 mm (0.47–0.63 in) long, the wings 9.5–13.5 mm (0.37–0.53 in) long, and the keel is pale greenish-yellow and 10.1–14.5 mm (0.40–0.57 in) long. Flowering has been observed in May. [2] [3]
Bossiaea laxa was first formally described in 2006 by James Henderson Ross in the journal Muelleria from specimens collected in the Cave Hill Reserve north-west of Norseman in 2003. [3] [4] The specific epithet (laxa) means "loose" or "open" referring to the species' growth form. [3]
This bossiaea is only known from the Cave Hill Reserve in the Coolgardie biogeographic region where it grows in woodland. [2] [3]
Bossiaea laxa is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife, [2] meaning that it is poorly known and from only one or a few locations. [5]
Bossiaea arenicola is a species of flowering plant in the family Fabaceae and is endemic to a far north Queensland. It is a shrub or small tree with broadly elliptic to more or less round leaves, and yellow and pale greenish flowers.
Bossiaea linophylla is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a spreading shrub with linear to oblong or egg-shaped leaves, and bright yellow to orange or apricot-coloured and red flowers.
Bossiaea halophila is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a dense, erect, many-branched shrub with narrow-winged cladodes, leaves reduced to small scales, and yellow-orange and deep red flowers.
Bossiaea arcuata is a species of flowering plant in the family Fabaceae and is endemic to a small area in Western Australia. It is an erect, openly-branched, more or less leafless shrub with often arched cladodes, and yellow and red pea-like flowers.
Bossiaea aurantiaca is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a rounded or spreading, spiny shrub with oblong to narrow egg-shaped leaves, and golden-yellow and pinkish-red flowers.
Bossiaea barbarae is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is an erect, compact, spiny shrub with egg-shaped to elliptic or oblong leaves, and deep yellow and bright red flowers.
Bossiaea concolor is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is an erect shrub with elliptic to oblong or egg-shaped leaves with the lower end towards the base, and yellow and red flowers.
Bossiaea cucullata is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a dense, many-branched shrub with narrow-winged cladodes, leaves reduced to dark brown scales, and yellow and deep red or pale greenish-yellow flowers.
Bossiaea dasycarpa is a species of flowering plant in the family Fabaceae and is endemic to a small area in eastern Australia. It is a prostrate or low-lying shrub with narrow oblong to narrow elliptic leaves, and yellow and red flowers.
Bossiaea eremaea is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is an openly-branched, spreading, more or less leafless shrub with deep yellow and purplish flowers.
Bossiaea flexuosa is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a compact shrub with slightly flattened, zigzag branches, notched, more or less leafless cladodes, and golden yellow and red or pinkish flowers.
Bossiaea inundata is a species of flowering plant in the family Fabaceae and is endemic to the Murchison River Gorge in Western Australia. It is a spreading, openly-branched shrub with oblong, elliptic or egg-shaped leaves with the narrower end towards the base, and deep yellow and red flowers.
Bossiaea obovata is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a small, low-lying or prostrate shrub with egg-shaped leaves with the narrower end towards the base, and pea-shaped, yellow and red flowers.
Bossiaea preissii is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a compact, glabrous shrub with egg-shaped leaves with the narrower end towards the base, and yellow, red, orange or apricot-coloured flowers.
Bossiaea pulchella is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a slender, erect shrub with egg-shaped leaves, and orange-yellow, purplish brown and dark red flowers.
Bossiaea riparia, commonly known as river leafless bossiaea, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern Australia. It is an erect or low-lying shrub with flattened branches, linear young cladodes, leaves mostly reduced to small scales, and yellow and red flowers.
Bossiaea saxosa is a species of flowering plant in the family Fabaceae and is endemic to a restricted area near Norseman, Western Australia. It is an erect, intricately branched shrub with many slightly flattened, sharply-pointed cladodes and deep yellow, red and lemon-yellow, pea-like flowers.
Bossiaea scortechinii is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a prostrate to low-lying shrub with simple, elliptic to egg-shaped leaves with the narrower end towards the base, and orange-yellow flowers with red to pinkish markings.
Bossiaea smithiorum is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a slender shrub with oblong to cylindrical leaves and orange-yellow and red or purple, pea-like flowers.
Bossiaea spinescens is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a slender, spreading or compact, spiny shrub with oblong to oval leaves and yellow and reddish-brown, pea-like flowers.
