Dalea tentaculoides |
Dalea gattingeri |
|
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gentry's indigobush |
Gattinger prairie clover, purpletassels |
|
Habit | Shrubs or subshrubs, relatively erect, sparsely pilosulous or glabrous proximal to inflorescences. | |
Stems | 3–6(–12) dm, glandular-tuberculate distally. |
1.5–3.5 dm, usually glabrous or glabrescent at base, pilosulous distally, eglandular or with scattered small glands. |
Inflorescences | spikes, relatively densely flowered, not involucrate, 11–15 mm diam.; axis not to partially visible, 1–2(–2.5) cm; bracts persistent or deciduous, (2.5–)3–5.5 mm. |
spikes, moderately densely flowered, not involucrate, (8–)9–10 mm diam.; axis becoming partially visible, 1.5–7.5 cm; bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 3–5(–6) mm. |
Peduncles | (0–)0.2–2.2 cm. |
0.5–2.5 cm. |
Stamens | 10, 8–9.5 mm, filaments distinct to 2.6–3.5 mm, anthers 0.7–1 mm. |
5, 6.3–7.8 mm, filaments distinct to 3.8–5.4 mm, anthers 0.8–1 mm. |
Corollas | bicolored, banner whitish, reddish in age, epistemonous petals rose-purple; papilionaceous; banner 6.2–6.7 mm, blade flabellate, 3–3.5 × 3.9–4.2 mm; epistemonous petals attached proximal to middle of stamen tube; wings 4.9–5.8 × 2.2–3 mm; keel connate valvately, blades 5–6.2 × 3.2–4.4 mm. |
rose-purple; not conventionally papilionaceous; banner 5.2–6.2 mm, blade ovate, 2.1–2.6 × (1.6–)2–2.8 mm; epistemonous petals attached at separation of filaments, blades 2.6–3.2 × 0.9–1.3 mm. |
Calyces | asymmetric, recessed opposite banner, 5.2–7.8 mm, sparsely pilosulous; tube 2.5–3.1 mm, with 0–2 glands between ribs, lobes lanceolate-acuminate, each with several elongated, pricklelike glands (gland spurs). |
subsymmetric, 4–5 mm, pilose-tomentulose; tube 2–2.5(–2.7) mm, prominently to indistinctly 10-ribbed, ± circular in cross section, with 0 glands between ribs, lobes lanceolate or adaxial pair ovate. |
Legumes | 3 mm, pilosulous distally, eglandular. |
2.8–3.3 mm, pilosulous distally and dotted with small glands. |
Seeds | 1.5 mm. |
2.2 mm. |
Principal | leaves 3–6 cm; leaflets 19–35, blades oblong-elliptic to obovate, 2.5–8 mm. |
leaves 2–3.5 cm; leaflets 5 or 7(or 9), blades linear to linear-oblanceolate or linear-elliptic, 8–18 mm. |
Perennial | herbs, diffusely spreading, distally pilosulous on stems. |
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2n | = 14. |
|
Dalea tentaculoides |
Dalea gattingeri |
|
Phenology | Flowering spring (fall). | Flowering late spring–summer. |
Habitat | Rocks in canyons, rocky volcanic slopes in desert mountains. | Cedar glades and barrens, on rocky, calcareous soils. |
Elevation | 900–2200 m. (3000–7200 ft.) | 150–500 m. (500–1600 ft.) |
Distribution |
AZ; Mexico (Sonora) |
AL; AR; GA; MO; TN
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Discussion | Dalea tentaculoides occurs in Santa Cruz and Pima counties. It is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea gattingeri is a narrow habitat specialist that can be locally common in suitable habitat. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Kuhnistera gattingeri, Petalostemon gattingeri | |
Name authority | Gentry: Madroño 10: 238, plates 18, 19. (1950) | (A. Heller) Barneby: Mem. New York Bot. Gard. 27: 274. (1977) |
Web links |