Tephrosia richardsiae J.B.Gillett
subsp. richardsiae

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Tephrosia richardsiae subsp. richardsiae

Photo: Nicholas Wightman
Tondwa GMA, Nsama District, Northern Province, Zambia

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Synonyms:
Common names:
Frequency:
Status:	Native
Description:	Herbaceous annual to woody perennial shrub, erect or prostrate, somewhat bushy, 30–100 cm high. Stems densely pubescent to tomentose with whitish to rusty-brown upwardly appressed to deflexed hairs. Leaves pinnate with (2)4–8 pairs of leaflets; petiole 0.3–1(1.5) cm long, petiole and rachis together (1)2–5(7) cm long, pubescent to tomentose like the stem; leaflets 1–3(3.7) × (0.3)0.4–0.7(0.9) cm, oblanceolate to narrowly obtriangular or narrowly elliptic, cuneate to rounded at the base, rounded to emarginate at the apex; upper surface glabrous or rarely the younger leaves appressed-pubescent and glabrescent, the lower surface densely appressed-pubescent with silvery hairs, silky; stipules 5–9(14) × 0.5–1 mm, linear, persistent. Flowers in dense heads 1–3(4) cm long, terminal on main or lateral branches and surrounded or exceeded by the upper leaves, and usually also some flowers in the axils of the 1–5 uppermost leaves; bracts 3–9 × 0.5–1 mm, linear; pedicels 2–3(5 in fruit) mm long. Calyx (5)6–9 mm long, densely pubescent with appressed to spreading hairs, grey, or brown on the teeth; lateral teeth equalling or somewhat exceeding the tube, upper teeth joined for less than ⅓ their length or ± free to the base. Petals 12–18 mm long, yellow or orange to pinkish. Ovary pubescent; style glabrous, with pencillate tip. Pods 30–44 × 3.5–5 mm, lanate-tomentose with grey or brown hairs, those at the margin sometimes conspicuously darker than those on the surfaces. Seeds 6–9, c.2.8 × 2 × 1 mm, blackish-brown, ± ovoid, with a small rim aril towards the narrower end.
Notes:
Derivation of specific name:	richardsiae: named for Mrs Mary Richards (1885 - 1977), a prolific botanical collector in Zambia and Tanzania and collector of the type specimen.
Habitat:
Altitude range:
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Worldwide distribution:	Zambia
Malawi distribution:	N
Growth form(s):	Shrub under 2 m.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Literature:	Brummitt, R.K., Harder, D.K., Lewis, G.P., Lock, J.M., Polhill, R.M. & Verdcourt, B. (2007). Leguminosae Subfamily Papilionoideae Flora Zambesiaca 3(3) Pages 155 - 156.

Other sources of information about Tephrosia richardsiae subsp. richardsiae:

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Flora of Zambia: Tephrosia richardsiae subsp. richardsiae

External websites:

African Plants: A Photo Guide (Senckenberg): Tephrosia richardsiae
BHL (Biodiversity Heritage Library): Tephrosia richardsiae
EOL (Encyclopedia of Life): Tephrosia richardsiae
GBIF (Global Biodiversity Information Facility): Tephrosia richardsiae
Google: Web - Images - Scholar
iNaturalist: Tephrosia richardsiae
IPNI (International Plant Names Index): Tephrosia richardsiae
JSTOR Plant Science: Tephrosia richardsiae
Mansfeld World Database of Agricultural and Horticultural Crops: Tephrosia richardsiae
Plants of the World Online: Tephrosia richardsiae
Tropicos: Tephrosia richardsiae
Wikipedia: Tephrosia richardsiae