Flora of North America species comparison

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Dalea bicolor

Dalea pogonathera

silver prairie clover

bearded dalea, bearded prairie clover
Stems

(0.4–)0.7–3.5 dm, sparsely glandular-punctate.
Inflorescences

spikes, loosely flowered, not involucrate, 9–18(–20) mm diam.;

axis visible, 1–8 cm;

bracts persistent, 3–6 mm.
Peduncles

0.5–4 cm.
Stamens

9 or 10, (6.5–)7.5–10.5 mm, filaments distinct to 1.7–3 mm, anthers (0.4–)0.5–0.7 mm.
Corollas

violet-purple, banner with whitish or greenish center; papilionaceous;

banner (4.5–)4.8–7.8 mm, blade broadly ovate, proximally cordate, 2–3.6 × 2.4–4 mm; epistemonous petals attached near middle of stamen tube;

wings 2.3–3.9 × 1.2–2.1 mm;

keel connate valvately, blades 3.4–5.8 × 1.9–3.1 mm.
Calyces

± asymmetric, opening oblique, 5.2–10.5 mm, densely villosulous;

tube 2.6–3.4 mm, with 4–7 small glands between ribs, lobes triangular-aristate, becoming plumose.
Legumes

2.8–3.5 mm, densely pilosulous distally, eglandular.
Seeds

1.9–2.4 mm.
Perennial

herbs, decumbent to ascending, glabrous proximal to inflorescences.
Principal

leaves (0.4–)0.8–2(–2.5) cm;

leaflets (3 or)5 or 7, blades oblanceolate to oblong-elliptic, (1.5–)2–10 mm.

Dalea bicolor

Dalea pogonathera
Distribution
from USDA
sw United States; Mexico
[WildflowerSearch map]
[BONAP county map]
from USDA
sw United States; n Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 5 (1 in the flora).

Only var. argyrea enters the flora area; the other varieties are confined to Mexico. Variety orcuttiana Barneby occurs in Baja California, var. naviculifolia (Hemsley) Barneby in Oaxaca, var. canescens (M. Martens & Galeotti) Barneby in Oaxaca and Puebla, and var. bicolor is widely distributed in central and northern Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 2 (2 in the flora).

The varieties of Dalea pogonathera are geographically mostly separated with a broad transitional zone where intermediate individuals occur. Variety pogonathera is the more westerly distributed and upland form; var. walkerae has a more easterly range and occurs in more lowland situations. The region of intermediacy occurs in the Rio Grande valley from roughly Val Verde County to Zapata County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Spike diam. 13–18(–20) mm; calyx: longest lobe.
var. pogonathera
1. Spike diam. 9–12(–13) mm; calyx: longest lobe to.
var. walkerae
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. 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. tentaculoides, 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. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, 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
Subordinate taxa
D. bicolor var. argyrea
D. pogonathera var. pogonathera, D. pogonathera var. walkerae
Name authority Humboldt & Bonpland ex Willdenow: Hort. Berol. 2: plate 89. (1809): Enum. Pl., 787. (1809) A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 31. (1849)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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