Coulter's Stickpea

Anneslia media (Mart. & Gal.) Britton & Rose
Acacia media Mart. & Gal. Bull. Acad. Brux. 10': 316. 1843. Calliandra angelica Benth. Lond. Journ. Bot. 3: 100. 1844. Feuilleea angelica Kuntze, Rev. Gen. PI. 187. 1891.
A small tree, the twigs glabrate or softly pubescent. Pinnae 1 or 2 pairs; leaflets &-10 pairs, approximate, elliptic to oblong, 4-8 mm. long, obtuse, pubescent on both sides; stipules lanceolate; heads axillary, long-peduncled; flowers white; corolla about 2 mm. long; stamens long-exserted, white.
Type locality: Mountains of Regla, Hidalgo. Distribution: Known only from the type locality.

Anneslia coulteri (S. Wats.) Britton & Rose
Calliandra Coulteri S. Wats. Proc. Am. Acad. 17: 352. 1882.
Stem herbaceous, very slender, glabrous, 2-3 dm. high. Stipules lanceolate, 4 mm. long; pinnae 1 or 2 pairs; rachis pubescent, 1-3 cm. long; leaflets 6-10 pairs, oblong, 4-8 mm. long, acute, glabrous, with ciliate margins; peduncles axillary, slender, 2.5-5 cm. long; calyx and corolla glabrous; stamens 2-2.5 cm. long, united near the base, pink; legume 3 cm. long, glabrous.
Type LOCALITY : Soledad, Coahuila. Distribution: Hidalgo; Coahuila.

Anneslia oaxacana (Rose) Britton & Rose
Calliandra oaxacana Rose, Contr. U. S. Nat. Herb. 5: 193. 1899.
A shrub, 9-15 dm. high, the branches slender and glabrous. Stipules 2 mm. long, obtuse; pinnae 1 or 2 pairs; leaflets 14-18 pairs, oblong, 5-6 mm. long, acute, thin, glabrous except a few marginal hairs; peduncles axillary, solitary or clustered, slender, 5-7 cm. long; flowers glabrous; calyx about 1 mm. long; corolla nearly 3 mm. long; stamens 2 cm. long, united near the base, reddish; legume 8-9 cm. long, obtuse, glabrous.
Type i,ocai,it: Tomellin Cafion, Oaxaca. Distribution: Oaxaca, Hidalgo, and Puebla.

Perennial, Shrubs, Stems woody below, or from woody crown or caudex, Nodules present, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems less than 1 m tall, Stems 1-2 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules green, triangulate to lanceolate or foliaceous, Stipules setiform, subulate or acicular, Leaves compound, Leaves bipinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 10-many, Leaves glabrous or nearly so, Inflorescences racemes, Inflorescences globose heads, capitate or subcapitate, Inflorescence axillary, Bracts very small, absent or caducous, Flowers actinomorphic or somewhat irregular, Calyx 5-lobed, Calyx glabrous, Petals united, valvate, Petals greenish yellow, Stamens numerous, more than 10, Stamens completely free, separate, Stamens monad elphous, united below, Stamens long exserted, Filaments glabrous, Filaments pink or red, Style terete, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit exserted from calyx, Fruit explosively or elastically dehiscent, Fruit glabrous or glabrate, Fruit 3-10 seeded, Seed with elliptical line or depression, pleurogram, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.