Dalea phleoides
Dalea exserta
slimspike prairie clover
Mexican prairie clover
(2.5–)3–7 dm, glandular-tuberculate.
ribbed, (1.5–)5–10(–12) dm, glandular-verrucose distally.
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.
spikes, relatively densely flowered, not involucrate, 13–16 mm diam.;
axis usually not visible, (1.5–)2–8 cm;
bracts deciduous by anthesis, (3–)4–8 mm.
(1–)2–20(–25) cm.
(1–)2.5–14 cm.
5, 5.2–7.4 mm, filaments distinct to 3–4.3 mm, anthers 0.6–0.9 mm.
8–10, (7.5–)8–11 mm, filaments distinct to 0.1–1.6 mm, anthers 0.4–0.5 mm.
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.
white, sometimes banner purplish in age;
not conventionally papilionaceous;
banner 4.9–7.3 mm, blade lanceolate-oblong to oblong-elliptic, 3–4.8 × 2.2–2.3 mm; epistemonous petals attached near or proximal to middle of stamen tube, blades somewhat unequal, laterals (2–)3.4–5 × 1–1.8 mm, abaxials 3–3.7 × 1.1–1.6 mm.
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.
asymmetric, recessed opposite banner, 4.8–7 mm, glabrous;
tube (2.5–)2.7–3.8 mm, with 2–4(–8) large glands between ribs, lobes triangular-aristate.
2.5–2.9 mm, pilosulous distally, sometimes also gland-dotted.
2.2–2.8 mm, pilosulous distally and dotted with small glands.
apparently unknown.
1.6–1.8(–2) mm.
herbs, erect, pilosulous throughout or in part.
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.
leaves 3–10 cm;
leaflets 19–37, blades oblong-elliptic to oblanceolate, 2–9 mm.
herbs, erect, glabrous proximal to inflorescences.
= 14 (Mexico).
Dalea phleoides
Dalea exserta
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.)
The existence of Dalea exserta in the flora area rests on specimens collected in 1939 by Goodding in Sycamore Canyon, near Ruby in Santa Cruz County. Because it is an annual that often grows in disturbed ground, it may be found again there or at some other locality in southern Arizona.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflets 13–21(–25), blades 5–14 mm. | var. phleoides |
1. Leaflets 25–41(–49), blades 2–7 mm. | var. microphylla |
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