Flora of North America species comparison

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Dalea lumholtzii

Dalea grayi

lumholtz's prairie clover

Gray's prairie-clover
Stems

1.5–5(–6) dm, glandular-verruculose.

(3–)3.5–7(–9) dm, eglandular or sparsely gland-dotted.
Inflorescences

spikes, densely flowered, not obviously involucrate, 6–8.5 mm diam.;

axis not visible, 0.4–1.4(–3) cm;

bracts persistent, (1.5–)2–4 mm.

spikes, densely flowered, not involucrate, 7–9 mm diam.;

axis not visible, (0.4–)0.7–5.5(–7) cm;

bracts persistent, (2.2–)2.5–4.5 mm.
Peduncles

(1.5–)2.5–10 cm.

0.5–5(–10) cm.
Stamens

10, 5–7.7 mm, filaments distinct to 2.6–3.7 mm, anthers 0.6–0.7 mm.

10, 5.5–7 mm, filaments distinct to 2.7–4 mm, anthers 0.5–0.7 mm.
Corollas

white, or epistemonous petals blue or bluish;

not conventionally papilionaceous;

banner plane, 3–5.2 mm, blade ovate-elliptic to suborbiculate, not peltate, 2–2.4 × 2–2.4 mm; epistemonous petals attached near middle of stamen tube, blades 2.3–4 × 1.1–1.3 mm.

white or whitish, banner reddish or purplish in age;

not conventionally papilionaceous;

banner plane, 4–5.7 mm, blade triangular-cordate to rhombic-ovate, not peltate, 1.6–2.5 × 2–2.4 mm; epistemonous petals attached high on stamen tube, just proximal to separation of filaments, blades 2.2–3.1 × 0.8–1.4 mm.
Calyces

strongly asymmetric, deeply recessed opposite banner, 2.7–4(–4.3) mm, glabrate or pubescent distally;

tube 2.1–2.8(–3) mm, with (0 or)3–6 minute glands between ribs, lobes subulate.

subsymmetric, 3.6–4.8(–5.2) mm, silky-pilosulous;

tube 2–2.7 mm, with 3–6 glands between ribs, lobes triangular-acuminate to -aristate.
Legumes

2.2–2.6 mm, puberulent distally, eglandular.

2.2–2.5 mm, villosulous distally and dotted with small glands.
Seeds

1.6–1.8 mm.

1.6 mm.
Perennial

herbs, erect, pilosulous to puberulent.

herbs, erect, glabrous proximal to inflorescences.
Principal

leaves (2–)2.5–5 cm;

leaflets (9–)21–35, blades linear, linear-oblanceolate, or linear-elliptic, (1.5–)2–9(–10) mm.

leaves 1–5 cm;

leaflets (11–)17–43, blades elliptic-oblanceolate to narrowly obovate, 1–4.5(–5.5) mm.
2n

= 14.

Dalea lumholtzii

Dalea grayi
Phenology Flowering fall. Flowering fall (spring–summer).
Habitat Open rocky hillsides and canyons, open pine or oak woodlands. Rocky slopes, washes, canyons, open pine or oak woodlands.
Elevation 1400–1900 m. (4600–6200 ft.) 700–2200 m. (2300–7200 ft.)
Distribution
from FNA
AZ; Mexico (Chihuahua, Sonora)
[BONAP county map]
from FNA
AZ; NM; Mexico (Chihuahua, Durango, Sinaloa, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Some herbarium labels comment on the lemon odor of Dalea lumholtzii. Although the epistemonous petals are generally blue or bluish, white-petaled plants are not uncommon in the flora area.

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

Dalea grayi occurs in southeastern Arizona as far northwest as Gila County and far southwestern New Mexico (Grant and Hidalgo counties).

(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. 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. 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
Synonyms Parosela grayi
Name authority B. L. Robinson & Fernald: Proc. Amer. Acad. Arts 30: 115. (1894) (Vail) L. O. Williams: Ann. Missouri Bot. Gard. 23: 450. (1936)
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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