Dalea pulchra |
Dalea sabinalis |
|
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Santa Catalina prairie-clover |
sabinal prairie clover |
|
Habit | Shrubs, relatively erect, stiffly-branching, silky- or velvety-pubescent distally. | |
Stems | 5–10 dm, verruculose distally. |
2.5–5(–6) dm, sparsely gland-dotted. |
Inflorescences | spikes, densely flowered, obviously involucrate (proximalmost several whorls of bracts subtending rudimentary buds), 11.5–16 mm diam.; axis not visible, 0.4–0.7 cm; bracts deciduous, interfloral ones sometimes held in place by crowded flowers, 2–6.5 mm. |
spikes, relatively loosely flowered, not involucrate, 6.5–8 mm diam.; axis usually partially visible at anthesis, 4–9 cm; bracts early deciduous, 3 mm. |
Peduncles | 0–1 cm. |
6–12 cm. |
Stamens | 10, 7.5–9 mm, filaments distinct to 1.8–2.8 mm, anthers 0.6–0.7 mm. |
5, 5–6 mm, filaments distinct to 2.5–3 mm, anthers 0.6 mm. |
Corollas | bicolored, banner cream, reddish in age, epistemonous petals pink-purple; papilionaceous; banner 6–7.5 mm, blade ovate- or deltate-cordate, 2.8–4.2 × 3.4–4.4 mm; epistemonous petals attached proximal to middle of stamen tube; wings 4.1–5 × 2–2.6 mm; keel connate valvately, blades 5.2–6.8 × 3–3.5 mm. |
pink to rose; not conventionally papilionaceous; banner 5.4 mm, blade deltate-obcordate, 2.5 × 3 mm; epistemonous petals attached at separation of filaments, blades 3 × 1.5 mm. |
Calyces | asymmetric, recessed opposite banner, (4.5–)4.8–7.2 mm, densely pilose; tube 2.4–3.4 mm, hyaline intervals usually with row of inconspicuous blister glands between ribs (or eglandular), lobes triangular-aristate, spurred laterally near proximal end, unequal, abaxial longest. |
asymmetric, recessed opposite banner, 3–3.3 mm, glabrous, lobes sometimes pilosulous; tube 2.3–2.5 mm, greenish intervals between ribs eglandular, lobes subulate or adaxial pair triangular-ovate. |
Legumes | 2.5–3 mm, densely pubescent distally, eglandular. |
3 mm, glabrate, margins ± short-ciliate distally, minutely gland-dotted. |
Seeds | 1.5–1.8 mm. |
1.5–2.1 mm. |
Principal | leaves 0.5–1.5 cm; leaflets 5 or 7(or 9), blades obovate to oblanceolate, 1.5–5 mm. |
leaves 2–4 cm; leaflets 11–17, blades linear-oblanceolate, 7–15 mm. |
Perennial | herbs, erect, glabrous proximal to inflorescences. |
|
2n | = 14. |
|
Dalea pulchra |
Dalea sabinalis |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Sandy to gravelly or rocky grasslands, open oak, juniper, or pine woodlands, desert scrub. | Open slopes, limestone soils. |
Elevation | 900–1400 m. (3000–4600 ft.) | 500–600 m. (1600–2000 ft.) |
Distribution |
AZ; NM; Mexico (Chihuahua, Sonora)
|
TX |
Discussion | Plants of Dalea pulchra are attractive in flower. The spikes shatter quickly at anthesis; legumes and seeds are seldom seen. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea sabinalis was first found at the entrance to Sabinal Canyon in Bandera County, but collections are known also from nearby Uvalde and Val Verde counties; it has not been collected since the 1950s, and no extant populations are known. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Dalea | Fabaceae > subfam. Faboideae > Dalea |
Sibling taxa | ||
Synonyms | Petalostemon sabinalis | |
Name authority | Gentry: Madroño 10: 227, plate 14. (1950) | (S. Watson) Shinners: Field & Lab. 17: 83. (1949) |
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