Lespedeza hirta |
Lespedeza stuevei |
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hairy bush-clover, hairy bush-clover or lespedeza, hairy lespedeza |
Stueve's lespedeza, tall bush-clover, tall lespedeza |
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Habit | Herbs. | Herbs. | ||||
Stems | erect or ascending, 80–200 cm, branched distally, short appressed-pubescent, pilose, or villous. |
ascending or erect, clustered, slender, 70–150 cm, simple or branched apically, villosulous or strigose. |
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Leaves | stipules subulate to narrowly triangular, 3–6 mm; petiole 10–15(–20) mm, longer than rachis; leaflet blades ovate-elliptic, obovate, or rounded, apex obtuse or retuse, minutely apiculate, surfaces green, cinereous, or silvery abaxially, sparsely to densely sericeous abaxially, glabrous, sericeous, pilose, or silvery with fine, dense, appressed-silky hairs adaxially; terminal blade 10–40(–50) × (7–)10–30 mm, length 1.3–1.8 times width. |
stipules subulate to narrowly triangular, 3–5 mm; petiole 7–10 mm, longer than rachis; leaflet blades elliptic to elliptic-oblong, base obtuse, apex obtuse to retuse, apiculate, surfaces appressed-pubescent or subappressed-pilose abaxially, lateral veins often conspicuous abaxially, sparsely appressed-pubescent adaxially; laterals similar to terminal; terminal blade 10–40 × 5–12 mm, length 1.5–2.5(–3) times width. |
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Racemes | 10–40-flowered, axillary from distal leaves or clustered in compound inflorescences, flowers compact to lax, axis and pedicels visible, flowers chasmogamous and cleistogamous. |
5–15-flowered, flowers clustered distally, shortly glomerate, flowers chasmogamous and cleistogamous. |
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Peduncles | longer than subtending leaves. |
shorter than or equal to subtending leaves. |
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Pedicels | 1–2 mm; bracteoles longer than calyx tube. |
0.5–2 mm; bracteoles shorter than calyx tube. |
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Flowers | chasmogamous 7–10 mm; calyx 7–10 mm, pubescent, tube 1–2 mm; lobes 5, lateral narrowly triangular, 7–8 mm, apices spinelike; corolla cream-white or creamy with pink or purple at throat; wings 6–7 mm; keel 5–6 mm. |
chasmogamous 5–6 mm; calyx 3–4 mm, sericeous or villous, tube 1 mm; lobes 4, lateral narrowly triangular, 2–2.5 mm, adaxial connate proximally, apices acuminate; corolla purple; wings 5.7–6.2 mm; keel 5–5.3 mm. |
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Loments | chasmogamous slightly included in calyx, ovate-oblong, 6–8 × 4–5 mm, cleistogamous slightly included in calyx, oblong, 6 × 4 mm; stipe subsessile. |
chasmogamous exserted from calyx, calyx 2/5 loment length, ovate, 4–6 mm, cleistogamous exserted from calyx, ovate, 4–5 mm, sericeous or villous; stipe 0.2 mm. |
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2n | = 20. |
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Lespedeza hirta |
Lespedeza stuevei |
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Phenology | Flowering summer–fall. | |||||
Habitat | Open, dry, often sterile, rocky woodlands, openings, glades, old fields, roadsides, river bottoms, moist pine savannas, on sandy soils. | |||||
Elevation | 0–900 m. (0–3000 ft.) | |||||
Distribution |
North America
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AL; AR; CT; DC; DE; FL; GA; IL; IN; KS; KY; LA; MA; MD; MO; MS; NC; NJ; NY; OK; PA; RI; SC; TN; TX; VA; VT; WV
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Discussion | Subspecies 2 (2 in the flora). Lespedeza hirta forms natural hybrids with L. angustifolia, L. capitata, L. frutescens, L. procumbens, L. repens, L. stuevei, L. violacea, and L. virginica. Hybrids with L. violacea have been called L. × nuttallii Darlington, and offspring from Indiana plants of L. × nuttallii show morphologies that range from one parental species to the other. Other purple-petaled species may hybridize with L. hirta to produce offspring similar to the morphology of L. × nuttallii (D. Isely 1998). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lespedeza stuevei forms natural hybrids with L. angustifolia, L. frutescens, L. hirta, and L. virginica. Hybrids with L. virginica have been called L. × neglecta (Britton) Mackenzie & Bush and L. stuevei var. angustifolia Britton. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||
Parent taxa | Fabaceae > subfam. Faboideae > Lespedeza | Fabaceae > subfam. Faboideae > Lespedeza | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Hedysarum hirtum | |||||
Name authority | (Linnaeus) Hornemann: Hort. Bot. Hafn. 2: 699. (1815) | Nuttall: Gen. N. Amer. Pl. 2: 107. (1818) — (as stüvei) | ||||
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