Flora of North America species comparison

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Dalea phleoides var. microphylla

Dalea phleoides
Photo is of parent taxon

slimspike prairie clover

slimspike prairie clover
Stems

(2.5–)3–7 dm, glandular-tuberculate.
Leaflets

25–41(–49), blades 2–7 mm.

Inflorescences

spikes, densely flowered, not obviously involucrate, 5.5–7.5 mm diam.;

axis not visible, (1.5–)2.5–9(–13) cm;

bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 2.5–4.5 mm.
Peduncles

(1–)2–20(–25) cm.
Spike

axis usually pilosulous, rarely glabrous.

Stamens

5, 5.2–7.4 mm, filaments distinct to 3–4.3 mm, anthers 0.6–0.9 mm.
Corollas

white;

not conventionally papilionaceous;

banner 5.3–6.8 mm, blade deltate-obcordate, 2.8–3.5(–4) × 2.6–3.6(–5.2) mm; epistemonous petals attached at or near separation of filaments, blades 3–3.9 × 0.5–0.9 mm.
Calyces

pilosulous, at least basally.

asymmetric, deeply recessed opposite banner, 2.5–3.8 mm, glabrous or pilosulous;

tube 1.7–2.5(–2.8) mm, with 1 or 2 blister glands between ribs, adaxial with 3–7, lobes triangular-subulate or adaxial pair broadly triangular.
Legumes

2.5–2.9 mm, pilosulous distally, sometimes also gland-dotted.
Seeds

apparently unknown.
Perennial

herbs, erect, pilosulous throughout or in part.
Principal

leaves 2.5–5.5(–6.5) cm;

leaflets 13–41(–49), blades oblong to oblanceolate or oblong-elliptic, 2–14 mm, surfaces glandular-verruculose abaxially.

Dalea phleoides var. microphylla

Dalea phleoides
Phenology Flowering spring–early summer.
Habitat Sandy soils, open woods, dunes, beaches.
Elevation 0–600 m. (0–2000 ft.)
Distribution
from FNA
AR; OK; TX
[BONAP county map]
from USDA
sc United States
[BONAP county map]
Discussion

In Texas, var. microphylla is known from the eastern half of the state.

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

Varieties 2 (2 in the flora).

B. L. Turner (2013) divided Dalea phleoides into three species: D. phleoides, distinguished from D. drummondiana by longer leaf blades and calyces, and D. carrizoana, based on the absence of indument and an allopatric distribution (from DeWitt to Maverick counties) south of the range of the other two species; the latter two are treated here as synonyms of D. phleoides var. microphylla.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Leaflets 13–21(–25), blades 5–14 mm.
var. phleoides
1. Leaflets 25–41(–49), blades 2–7 mm.
var. microphylla
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Dalea > Dalea phleoides Fabaceae > subfam. Faboideae > Dalea
Sibling taxa
D. phleoides var. phleoides
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. 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. phleoides var. microphylla, D. phleoides var. phleoides
Synonyms Petalostemon phleoides var. microphyllus, D. carrizoana, D. drummondiana, P. microphyllus Petalostemon phleoides
Name authority (Torrey & A. Gray) Barneby: Mem. New York Bot. Gard. 27: 244. (1977) (Torrey & A. Gray) Shinners: Field & Lab. 17: 83. (1949)
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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