Galactia joselyniae |
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joselyn's milkpea |
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Habit | Herbs from woody taproot. |
Stems | procumbent, sometimes weakly twining distally, herbaceous or proximally lignescent, loosely strigose, hairs antrorse or retrorse. |
Leaflets | 3(rarely 5), blades usually broadly oblong-elliptic to suborbiculate, sometimes broadly oblong to broadly oblong-oblanceolate, (9–)11–29(–37) × 6–24(–34) mm, herbaceous, veins strongly raised on abaxial surface but not adaxially, apex rounded to truncate or retuse, surfaces light green to glaucous (beneath vestiture), densely hirsute-strigose to loosely strigose-sericeous, sometimes more densely so along abaxial veins. |
Inflorescences | flowers solitary and axillary or 2–8 in pseudoracemes, not fasciculate; axis (10–)40–130(–150) mm. |
Flowers | calyx 4–5 mm, loosely strigose, lobes greenish yellow to tan on inner surface when dry; corolla not persisting after anthesis, pink to rose-pink, dull blue-purple when dry, 6–8 mm. |
Legumes | straight, 25–40 × 4–6 mm, sparsely strigose, hairs filiform. |
Seeds | (4 or)5 or 6. |
Galactia joselyniae |
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Phenology | Flowering Jun(–Aug). |
Habitat | Gravelly canyon washes, rock cracks, under shrubs (such as Agave, Diospyros, Fallugia, Porophyllum, Viguiera, Yucca). |
Elevation | 600–1500 m. (2000–4900 ft.) |
Distribution |
TX; Mexico (Coahuila) |
Discussion | Galactia joselyniae is similar to G. wrightii in its mostly trailing stems and densely hairy leaves but different in its cauline vestiture with hairs either antrorse or retrorse, smaller, broadly oblong to suborbiculate leaves, and smaller and fewer flowers. It is known from Texas populations in Brewster County (Dead Horse Mountains, near the Rio Grande within side drainages of Boquillas Canyon) and Jeff Davis County (Wild Rose Pass) and from one collection in central Coahuila about 300 km south of the Brewster County sites. Plants in Brewster County have loosely strigose stems with antrorse hairs; those in Jeff Davis County and in Coahuila have strigose stems with retrorse hairs. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Name authority | G. L. Nesom: Phytoneuron 2015-42: 29, figs. 8–12. (2015) |
Web links |