Tephrosia florida (F. Dietr.) C. E. Wood

Cracca ambigua (M. A. Curt.) Kuntze, Rev. Gen. 174 1891.
Galega ambigua M. A. Curt. Host. Jour. Nat. Hist. 1: 121. 1834. Tephrosia hispidula ft T. & G. Fl. N. Am. 1 : 290. 1838.
Tephrosia ambigua M.A.Curtis; (D. Dietr. Syn. 1M.4: 1043, as synonym. 1847) Chapm.Fl.S. U.S. 96. 1860.
A perennial, with a woody caudex and strong woody root; stems prostrate or ascending, 3-5 dm. long, often purplish, dichotomously branched, angled, more or less strigose; leaves 7-15 cm. long; stipules 5-7 mm. long, lance-subulate, persistent; petiole 3-8 cm. long; rachis strigose; leaflets 7-13, linear-oblong to oblanceolate or euneate-oblong, or obovate, 2-4 cm. long, 5-15 mm. broad, mostly obtuse or rounded and mucronate at the apex, coriaceous, sparingly strigose or glabrate above, more densely strigose beneath, redveined; racemes opposite the leaves, including the peduncle 1-1.5 cm. long, lax; flowers 1 or 2 at each node; bracts subulate, 5 mm. long; calyx hirsute, the tube 2.5 mm. long, the lobes subulate, 3 mm. long; corolla purple, 12-15 mm. long; banner rounded -obovate; wings oblong-oblanceolate, with a rounded basal auricle; pod 3.5-4.5 cm. long, 5 mm. wide, strigose-hispidulous.
TvPB locality: Wilmington, North Carolina.
Distribution: Pinelands from North Carolina to Florida and Louisiana.

Cracca angustissima (Shuttl.) Kuntze, Rev. Gen. 174. 1891
Tephrosia angustissima Shuttl.; Chapm. Fl. S. U. S. 96. 1860. Tephrosia purpurea angustissima li. 1.. Robinson, Bot. Gaz. 28: 201 . 1899.
A perennial, moie or less shrubby below; stem 5-7 dm. high, glabrous or sparingly strigose,
branched; leaves 6-10 cm. long; stipules subulate, setaceous, 2-3 mm. long; petiole about
1 cm. long; leaflets 11-15, narrowly linear, mucronate, 2-5 mm. long, 1-3 mm. wide, glabrous
above, sparingly strigulose or glabrate beneath; racemes slender, lax, including the peduncle
1-2 dm. long; bractlets subulate; calyx sparingly strigose, the tube 2 mm. long, the lobes
subulate, 2 mm. long; corolla purple, about 1 cm. long or less; banner suborbicular, strigose
without; wings broadly obliquely oblanceolate, with a rounded basal auricle; pod 4-5 cm.
long, 4 mm. wide, nearly straight, minutely strigose, 7-9-seeded.
Typb locality: South Florida. Distribution: Subtropical Florida.

Cracca gracillima (B. L, Robinson) A. Heller, Cat. N. Am. PI. ed. 2. 7. 1900.
Cracca anguslissima Vail. Bull. Torrey Club 22: i2. 1895. Not C. angustissima Kuntze, 1891. Tephrosia ambigua gracillima U h. Roliins.ni. Hot. Gaz. 28: 201. 1899.
A p. rennial, with a somewhat ligneous base; stem 3-6 dm. long, prostrate, diffuse, flexuose, sparingly strigose or glabrate; leaves 515 cm. long; stipules 3-7 mm. long, subulate-setaceous, persistent; petiole 2-8 cm. long; rachis sparingly strigose; leaflets 5-17, linear, acute at each end, 2-3 cm. long, 2-3 mm. wide, minutely strigose beneath; racemes lax, including the peduncle 5-10 cm. long; flowers 1 or 2 at each node; bracts subulate, setaceous; calyx sparingly strigose, the tube 2 mm. long, the lobes subulate, about 2 mm. long; corolla 10-12 mm. long, purple; banner suborbicular; wings broadly obliquely oblanceolate, with an acute basal auricle; pod 3-4 cm. long, 4-5 mm. wide, hirsutulous, 6-8-seeded; seeds dark-brown, 3 mm. long, 2 mm. broad.
Type locality: Near Eau Gallie, Indian River, Florida.
Distribution: Known only from the type locality.

Perennial, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodules present, Stems prostrate, trailing, or mat forming, Stems less than 1 m tall, Stems solid, Stems or young twigs sparsely to densely hairy, Stem hairs hispid to villous, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules setiform, subulate or acicular, Stipules persistent, Stipules free, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 5-9, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescences racemes, Inflorescence terminal, Inflorescence leaf-opposed, Bracts conspicuously present, Flowers zygomorphic, Calyx 5-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals ochroleucous, cream colored, Petals bicolored or with red, purple or yellow streaks or spots, Banner petal ovoid or obovate, Banner petal suborbicular, broadly rounded, Wing petals narrow, oblanceolate to oblong, Wing petals auriculate, Wing tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Keel tips obtuse or rounded, not beaked, Stamens 9-10 , Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style sharply bent, Style hairy, Style hairy on one side only, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit exserted from calyx, Valves twisting or coiling after dehiscence, Fruit beaked, Fruit hairy, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black, Seed surface mottled or patchy.

Tephrosia florida là một loài thực vật có hoa trong họ Đậu. Loài này được (F.Dietr.) C.E.Wood miêu tả khoa học đầu tiên.