Flora of North America species comparison

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Dalea neomexicana

Hall's prairie clover

downy prairie-clover, New Mexico dalea

Stems

1.3–3(–4) dm, eglandular or with scattered small glands.

0.3–3.5 dm, sparsely to densely glandular-pustulate.

Inflorescences

spikes, relatively loosely flowered, not involucrate, 14–17 mm diam.;

axis partially visible, 1–5 cm;

bracts deciduous near anthesis, 4–6.5 mm.

racemes, spikelike, densely flowered, not involucrate, 1.3–1.6 mm diam.;

axis not visible, 1–6 cm;

bracts soon deciduous, 2–6 mm.

Peduncles

usually absent, rarely to 1 cm.

0.3–0.4 cm.

Stamens

10, 9.5–11.5 mm, filaments distinct to 2.5–3 mm, anthers (0.7–)0.8–1 mm.

10, 5–6.7 mm, filaments distinct to 2.4 mm, anthers 0.5–0.7(–1) mm.

Corollas

yellow, rarely brownish in age; papilionaceous;

banner 5–6.2 mm, blade deltate-cordate, 2.8–3.3 × 3–3.8 mm; epistemonous petals attached near middle of stamen tube;

wings 3.6–5 × 2.2–2.8 mm;

keel connate valvately, blades 5.2–6.4 × 3.6–4 mm.

bicolored, banner whitish, violet-tinged, other petals white or whitish; papilionaceous;

banner 4–5.6 mm, blades ± cordate, (2.8–)3–3.7 × 2.3–3.4 mm; epistemonous petals attached proximal to middle of stamen tube;

wings 2.4–3.3 × 1.3–1.8 mm;

keel persistent, remaining attached to stamen column, connate by overlapping margins, blades 2.4–3.5 × 1.8–2.2 mm.

Calyces

asymmetric, recessed opposite banner, (5.1–)5.5–7.8 mm, pilosulous to pilose;

tube 2.4–3 mm, with 2 or 3 small glands between ribs, lobes lanceolate-aristate.

± symmetric, 4.2–8 mm, densely pilose;

tube 2.1–3.1 mm, with 5–7(–9) glands between ribs, lobes triangular-aristate or plumose.

Legumes

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

1.2–3 mm, pilose distally, eglandular.

Seeds

2.2 mm.

1.7–2.4 mm.

Perennial

herbs, decumbent to ascending, strigulose.

herbs, matted or tufted, gray-silky pubescent.

Principal

leaves 1.5–4.5 cm;

leaflets 3, blades linear-elliptic to linear, 8–30(–35) mm.

leaves 0.8–4.5 cm;

leaflets 7–15, blades cuneate-obcordate to obovate or elliptic-ovate, 2.5–8 mm, margins entire or undulate-crenate.

Dalea neomexicana

Phenology

Flowering spring (fall).

Habitat

Rocky outcrops in grasslands, usually on limestone.

Elevation

100–600 m. (300–2000 ft.)

Distribution

[BONAP county map]

sw United States; n Mexico

[WildflowerSearch map]

[BONAP county map]

Discussion

Dalea hallii is endemic to central and north-central Texas from the edge of the Edwards Plateau from as far south as Bandera County northward to Fannin County along the Red River.

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

Varieties 3 (2 in the flora).

Dalea neomexicana somewhat resembles Marina calycosa in habit and overall appearance. It is sometimes confused also with D. mollis and D. mollissima, since the annual nature of those species is not always apparent in well-developed plants.

Variety megaladenia Barneby is known from northern Mexico in the states of Chihuahua, Coahuila, and Durango.

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

Key

1. Leaflet blades cuneate-obcordate, margins usually undulate-crenulate.	var. neomexicana
1. Leaflet blades obovate or elliptic-ovate, margins usually entire.	var. longipila

Source

FNA vol. 11.

Parent taxa

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. 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. 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

Subordinate taxa

D. neomexicana var. longipila, D. neomexicana var. neomexicana

Synonyms

D. mollis var. neomexicana

Name authority

A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873)

(A. Gray) Cory: Rhodora 38: 406. (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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