Galactia texana |
Galactia canescens |
|
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Texas milkpea |
hoary milkpea |
|
Habit | Herbs from a slender, elongate, woody taproot. | Herbs from slender, elongate woody taproot, usually producing filiform rhizomes at nodes, these producing subterranean flowers and 1-seeded fruits. |
Stems | climbing-twining, proximally lignescent, hirsute-strigose to strigose, hairs loosely appressed, retrorse. |
procumbent, not twining, proximally lignescent, moderately strigose, hairs loosely appressed, retrorse. |
Leaflets | 3, blades elliptic to broadly elliptic or oblong-elliptic, (15–)20–42 × 10–25(–32) mm, herbaceous, veins raised or not on both surfaces, apex obtuse to rounded or shallowly retuse, surfaces not glaucous, sparsely strigose with closely appressed hairs to softly hirsute with ascending hairs abaxially, glabrous to sparsely strigose adaxially. |
3, blades broadly oblong to oblong-obovate, oblong-elliptic, or suborbiculate, 11–35(–42) × 8–30(–35) mm, herbaceous, veins not raised, apex rounded to flat or shallowly retuse, surfaces blue-green glaucous and densely strigose abaxially, sparsely strigose adaxially with closely appressed hairs. |
Inflorescences | flowers solitary and axillary or 2–5 in reduced pseudoracemes; axis 1–4(–40) mm. |
flowers 5–8 in pseudoracemes; axis 60–120 mm. |
Flowers | calyx 6 mm, loosely strigose to hirsute-strigose or hirsute; corolla pink, rose, reddish, or purple-cream, 8–11 mm. |
calyx 5–8 mm, hirsute to strigose-hirsute; corolla pink to pink-red or light purple, 9–11 mm. |
Legumes | falcate, 30–60 × 4–6 mm, sparsely minutely strigulose, hairs closely appressed. |
straight or slightly curved, 30–50 × 6–9 mm, densely strigose-sericeous. |
Seeds | (3–)6–10. |
1–5. |
Galactia texana |
Galactia canescens |
|
Phenology | Flowering Jun–Jul(–Aug). | Flowering Apr–Oct. |
Habitat | Oak-juniper, ash-juniper, and oak woodlands, valley and canyon bottoms, roadbanks, gravelly limestone outcrops and slopes, streamsides, terraces, limestone alluvium, rocky clay. | Sandy prairies, dunes, sand mounds, sandy roadsides, disturbed sites, sandy loam, alluvial sands. |
Elevation | 300–1500 m. (1000–4900 ft.) | 0–200 m. (0–700 ft.) |
Distribution |
TX; Mexico (Coahuila, Nuevo Léon, Tamaulipas); South America (Argentina) |
TX; Mexico (Tamaulipas) |
Discussion | In Texas, Galactia texana is known from east-central counties southwestward to the Big Bend region. Galactia texana is characterized by its twining stems, relatively short, few-flowered inflorescences, and falcate fruits. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Galactia canescens is characterized by its prostrate, strigose stems rooting at the nodes, slender rhizomes often bearing subterranean flowers and fruits, and broadly oblong to suborbiculate leaflets with glaucous and densely strigose abaxial surfaces. It is found in more than 20 counties in Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Lablab texanus | Heterocarpaea texana |
Name authority | (Scheele) A. Gray: Boston J. Nat. Hist. 6: 170. (1850) | Bentham: Comm. Legum. Gen., 62. (1837) |
Web links |