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gentry's indigobush

roundhead prairie clover

Habit Shrubs or subshrubs, relatively erect, sparsely pilosulous or glabrous proximal to inflorescences.
Stems

3–6(–12) dm, glandular-tuberculate distally.

3–8 dm, glandular-punctate.

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, densely flowered, nearly globose, inconspicuously involucrate (lowest bracts not subtending flowers), 7–9 mm diam.;

axis not visible, 0.4–1(–1.2) cm;

bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 2–2.4 mm.

Peduncles

(0–)0.2–2.2 cm.

(0–)0.5–3(–7) cm.

Stamens

10, 8–9.5 mm, filaments distinct to 2.6–3.5 mm, anthers 0.7–1 mm.

5, (5–)5.2–7.6 mm, filaments distinct to 2.5–4.5 mm, anthers 0.7–1.2 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.

white;

not conventionally papilionaceous;

banner (4–)4.2–5.7 mm, blade deltate-obovate, 2.3–3.4 × 2.4–3.7(–4.2) mm; epistemonous petals attached at separation of filaments, blades 2.3–3.5 × 1.5–2.1 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, (2.9–)3–4.2(–4.4) mm, glabrous, lobes ciliolate;

tube 1.6–2.6 mm, not deeply recessed opposite banner, with 1(–3) small blister glands between ribs, lobes lanceolate to triangular, ± unequal, abaxial pair longest.

Legumes

3 mm, pilosulous distally, eglandular.

2.5–3 mm, glabrate, with ± prominent elongated glands on sides.

Seeds

1.5 mm.

1.6–2 mm.

Principal

leaves 3–6 cm;

leaflets 19–35, blades oblong-elliptic to obovate, 2.5–8 mm.

leaves 2–3 cm;

leaflets (7 or)9 or 11(or 13), blades oblong to elliptic-oblanceolate, or linear-oblong, 7–13 mm.

Perennial

herbs, erect to spreading, glabrous.

Dalea tentaculoides

Dalea multiflora

Phenology Flowering spring (fall). Flowering late spring–early fall.
Habitat Rocks in canyons, rocky volcanic slopes in desert mountains. Prairies, rocky hills.
Elevation 900–2200 m. (3000–7200 ft.) 0–700 m. (0–2300 ft.)
Distribution
from FNA
AZ; Mexico (Sonora)
[BONAP county map]
from FNA
CO; KS; MO; NE; OK; TX
[WildflowerSearch map]
[BONAP county map]
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 multiflora shows considerable geographic variation in stature. Its floral structure is similar to that of D. candida var. candida, and individuals intermediate between the two species occur (R. C. Barneby 1977c). In Texas, D. multiflora is known from the eastern two-thirds of the state.

(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
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. jamesii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. jamesii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Synonyms Petalostemon multiflorus, Kuhnistera multiflora
Name authority Gentry: Madroño 10: 238, plates 18, 19. (1950) (Nuttall) Shinners: Field & Lab. 17: 82. (1949)
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