Sphaerolobium pubescens is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is a small shrub or subshrub with slender stems, tapering linear leaves and dense racemes of yellow flowers.
Sphaerolobium pubescens is a shrub or subshrub that typically grows to a height of 20–45 cm (7.9–17.7 in) and has erect, slender stems. The leaves are tapering linear, about 1 mm (0.039 in) long, 0.5 mm (0.020 in) wide and sessile. The flowers are arranged on the ends of the branches in dense racemes about 50 mm (2.0 in) with 20 to 32 flowers, each on a pedicel about 1.5 mm (0.059 in) long with bracts and bracteoles but that fall off as the flowers open. The sepals are egg-shaped, 2.5–4 mm (0.098–0.157 in) long and joined at the base, the two upper lobes joined for more than half their length. The standard petal is broadly heart-shaped with a notched tip, 4–6 mm (0.16–0.24 in) long and wide and yellow. The wings are 4.5–5.5 mm (0.18–0.22 in) long, yellow and reddish purple, and the keel 3.0–4.5 mm (0.12–0.18 in) long. Flowering occurs in October and November and the fruit is a more or less spherical pod about 3 mm (0.12 in) long and wide.[2][3]
Taxonomyedit
Sphaerolobium pubescens was first formally described in 1998 by Ryonen Butcher in the journal Nuytsia from specimens collected near Narrikup in 1996.[2][4] The specific epithet (pubescens) means "downy, with soft, fine hairs".[5]
Distribution and habitatedit
This species of pea grows in winter-wet areas and undulating plains in near coastal areas of the Esperance Plains, Jarrah Forest and Warren bioregions of southern Western Australia.
^"Sphaerolobium pubescens". Australian Plant Census. Retrieved 9 July 2022.
^ abButcher, Ryonen (1998). "Sphaerolobium pubescens and Sphaerolobium rostratum (Leguminosae: Mirbelieae), new species from Western Australia". Nuytsia. 12 (2): 172–174. Retrieved 9 July 2022.
^"Sphaerolobium pubescens". APNI. Retrieved 9 July 2022.
^Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 286. ISBN9780958034180.
January 01, 1970
sphaerolobium, pubescens, species, flowering, plant, family, fabaceae, endemic, south, western, australia, small, shrub, subshrub, with, slender, stems, tapering, linear, leaves, dense, racemes, yellow, flowers, scientific, classification, kingdom, plantae, cl. Sphaerolobium pubescens is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia It is a small shrub or subshrub with slender stems tapering linear leaves and dense racemes of yellow flowers Sphaerolobium pubescens Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Clade Rosids Order Fabales Family Fabaceae Subfamily Faboideae Genus Sphaerolobium Species S pubescens Binomial name Sphaerolobium pubescensButcher 1 Contents 1 Description 2 Taxonomy 3 Distribution and habitat 4 Conservation status 5 ReferencesDescription editSphaerolobium pubescens is a shrub or subshrub that typically grows to a height of 20 45 cm 7 9 17 7 in and has erect slender stems The leaves are tapering linear about 1 mm 0 039 in long 0 5 mm 0 020 in wide and sessile The flowers are arranged on the ends of the branches in dense racemes about 50 mm 2 0 in with 20 to 32 flowers each on a pedicel about 1 5 mm 0 059 in long with bracts and bracteoles but that fall off as the flowers open The sepals are egg shaped 2 5 4 mm 0 098 0 157 in long and joined at the base the two upper lobes joined for more than half their length The standard petal is broadly heart shaped with a notched tip 4 6 mm 0 16 0 24 in long and wide and yellow The wings are 4 5 5 5 mm 0 18 0 22 in long yellow and reddish purple and the keel 3 0 4 5 mm 0 12 0 18 in long Flowering occurs in October and November and the fruit is a more or less spherical pod about 3 mm 0 12 in long and wide 2 3 Taxonomy editSphaerolobium pubescens was first formally described in 1998 by Ryonen Butcher in the journal Nuytsia from specimens collected near Narrikup in 1996 2 4 The specific epithet pubescens means downy with soft fine hairs 5 Distribution and habitat editThis species of pea grows in winter wet areas and undulating plains in near coastal areas of the Esperance Plains Jarrah Forest and Warren bioregions of southern Western Australia Conservation status editSphaerolobium pubescens is listed as not threatened by the Government of Western Australia Department of Biodiversity Conservation and Attractions 3 References edit Sphaerolobium pubescens Australian Plant Census Retrieved 9 July 2022 a b Butcher Ryonen 1998 Sphaerolobium pubescens and Sphaerolobium rostratum Leguminosae Mirbelieae new species from Western Australia Nuytsia 12 2 172 174 Retrieved 9 July 2022 a b Sphaerolobium pubescens FloraBase Western Australian Government Department of Biodiversity Conservation and Attractions Sphaerolobium pubescens APNI Retrieved 9 July 2022 Sharr Francis Aubi George Alex 2019 Western Australian Plant Names and Their Meanings 3rd ed Kardinya WA Four Gables Press p 286 ISBN 9780958034180 Retrieved from https en wikipedia org w index php title Sphaerolobium pubescens amp oldid 1164223910, wikipedia, wiki, book, books, library,
