Dalea brachystachys |
Dalea feayi |
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Feay's prairie clover |
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Stems | (0.5–)1–3.5(–4) dm, eglandular or sparsely glandular-verruculose. |
3–7 dm, with scattered, small glands. |
Inflorescences | spikes, densely flowered, not obviously involucrate, 8–11 mm diam.; axis not to partially visible, 0.3–1.6 cm; bracts deciduous near anthesis, 2.5–6 mm. |
spikes, densely flowered, not involucrate, 7–9 mm diam.; axis not visible, 0.6–1.1 cm; bracts deciduous with fruit or proximal ones persistent, 0.8–2 mm. |
Peduncles | 1–7 cm. |
0–8 cm. |
Stamens | (9 or)10, 3.5–5.5 mm, filaments distinct to 1–1.4(–2) mm, anthers 0.3–0.5(–0.6) mm. |
5, 6.5–9.2 mm, filaments distinct to 3.5–5 mm, anthers 0.8 mm. |
Corollas | clear yellow, pinkish or brownish in age; papilionaceous; banner 2–3.4(–6) mm, blade deltate-ovate or cordate, 1–2 × 1–2 mm; epistemonous petals attached proximal to middle of stamen tube; wings 1–2(–2.9) × 0.7–1.1(–1.8) mm; keel connate valvately, blades 1.8–2.8(–3.8) × 1.3–2(–2.4) mm. |
usually pink to lavender, rarely white; not conventionally papilionaceous; banner 4.4–5.2 mm, blade broadly ovate, 2.1–2.6 × 1.8–2.5 mm; epistemonous petals attached at separation of filaments, blades 2.6–3.5 × 0.9–1.2 mm. |
Calyces | subsymmetric, (3.5–)4.4–5.8(–6) mm, pilose; tube 1.5–2.1 mm, with (0–)3 glands between ribs, lobes triangular-aristate. |
asymmetric, deeply recessed opposite banner, opening oblique, 3.2–4.4 mm, glabrous; tube 2.5–3.4 mm, with 1–3 blister glands between ribs, lobes subulate or adaxial pair ovate-subulate. |
Legumes | 2.3–2.6 mm, pilosulous and, sometimes, gland-dotted distally. |
3–3.3 mm, glabrous, ± glandular. |
Seeds | 1.4–1.7 mm. |
(1.5–)2–2.2 mm. |
Annual | herbs (monocarpic), erect or diffuse, glabrous proximal to inflorescences. |
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Principal | leaves 0.8–2.5(–3) cm; leaflets (3 or)5–11, blades oblanceolate to linear-oblanceolate, 2–14(–16) mm. |
leaves 1.5–3.5 cm; leaflets 7 or 9, blades involute, linear, (6–)7–12(–14) mm. |
Perennial | herbs, erect, becoming somewhat shrubby, glabrous proximal to inflorescences. |
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2n | = 14. |
= 14. |
Dalea brachystachys |
Dalea feayi |
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Phenology | Flowering late summer–fall (spring). | Flowering summer–fall (year-round). |
Habitat | Dry, open habitats in deserts, desert grasslands, open oak, juniper, or pine woodlands. | Sandy pine woods, on white sand. |
Elevation | 1300–2500 m. (4300–8200 ft.) | 0–30 m. (0–100 ft.) |
Distribution |
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Durango, Puebla, San Luis Potosí, Sonora, Tamaulipas, Zacatecas) |
FL; GA
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Discussion | Dalea brachystachys is found as far south as southeastern Puebla. In the flora area, it is most common in extreme southeastern Arizona and adjacent southwestern New Mexico, with scattered populations through much of both states. Unlike most annual Dalea species, it is rarely weedy. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea feayi occurs in xeric soils and generally does not grow in the same habitats as D. carnea. In Florida, the species is frequent in the peninsula and central panhandle regions. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | D. lemmonii | Petalostemon feayi |
Name authority | A. Gray: Smithsonian Contr. Knowl. 5(6): 39. (1853) | (Chapman) Barneby: Mem. New York Bot. Gard. 27: 257. (1977) |
Web links |