Flora of North America species comparison

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Dalea jamesii

Dalea reverchonii

James' dalea, James' prairie clover

Comanche Peak prairie clover
Stems

0.4–1.7(–2) dm, eglandular.

1.5–2 dm, eglandular.
Inflorescences

spikes, relatively densely flowered, not obviously involucrate, (16–)18–23(–25) mm diam.;

axis not to partially visible, 1.5–6.5(–8) cm;

bracts deciduous at anthesis, (4–)5–8(–9) mm.

spikes, loosely flowered, not involucrate, 8–10 mm diam.;

axis visible, 1.5–5 cm;

bracts deciduous, 2.5 mm.
Peduncles

absent or very short.

0–1 cm.
Stamens

10, (9.5–)10–11.7 mm, filaments distinct to 1.7–3 mm, anthers (0.8–)0.9–1.2 mm.

5, 6.1–7.2 mm, filaments distinct to 3.3–4 mm, anthers 0.7–0.9 mm.
Corollas

clear yellow, orangish brown in age; papilionaceous;

banner 5.2–6.2 mm, blade deltate-cordate, 3.2–4.2 × 3.2–4.4 mm, proximal lobes connate, forming obconic pit; epistemonous petals attached proximal to middle of stamen tube;

wings 3.9–5.1 × 2.3–3.2 mm;

keel connate valvately, blades 5.3–6.3 × 3.2–3.8 mm.

magenta-purple;

not conventionally papilionaceous;

banner 4.3–4.6 mm, blade ovate to elliptic, 2.1–2.3 × 1.8–2 mm; epistemonous petals attached at separation of filaments, blades 2.6–3 × 1.1–1.3 mm.
Calyces

somewhat asymmetric, slightly recessed opposite banner, (8.3–)8.5–12(–13.3) mm, pilose;

tube (2.4–)2.8–3.5 mm, with 3 or 4 small glands between ribs, lobes triangular-aristate.

subsymmetric, 4.2–4.6 mm, silky-pilosulous to -tomentulose, hairs subappressed;

tube 1.9–2.1 mm, with ribs leading to sinuses stronger than those leading to lobes, tube appearing bluntly 5-angled, with 0 glands between ribs, lobes lanceolate-acuminate or adaxial pair triangular-acuminate.
Legumes

3.5–4 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular.

3.1–3.5 mm, pilosulous and gland-dotted distally.
Seeds

2.3–3 mm.

1.3 mm.
Perennial

herbs, erect to ascending, silky-pilose to -pilosulous.

herbs, decumbent, pilosulous.
Principal

leaves (0.6–)1–3(–4) cm;

leaflets 3, blades obovate to broadly oblanceolate, (3–)5–18 mm, surfaces apparently eglandular.

leaves 2–3 cm;

leaflets 7 or 9, blades linear-oblong or -oblanceolate, 5–12 mm.
2n

= 14.

Dalea jamesii

Dalea reverchonii
Phenology Flowering spring–early summer (fall). Flowering spring–early summer (fall).
Habitat Rocky grasslands, deserts, open pine or juniper woodlands. Rocky limestone soils.
Elevation 900–2100 m. (3000–6900 ft.) ca. 400 m. (ca. 1300 ft.)
Distribution
from FNA
AZ; CO; KS; NM; OK; TX; Mexico (Chihuahua)
[WildflowerSearch map]
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

Dalea jamesii occurs from far southwestern Kansas to southeastern Arizona. In Texas, the species occurs in the northern panhandle and trans-Pecos regions.

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

Dalea reverchonii occurs in Hood, Parker, and Wise counties in north-central Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(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. 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. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Synonyms Psoralea jamesii Petalostemon reverchonii
Name authority (Torrey) Torrey & A. Gray: Fl. N. Amer. 1: 308. (1838) (S. Watson) Shinners: Field & Lab. 17: 84. (1949) — (as reverchoni)
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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