Lupinus concinnus
Lupinus lepidus
bajada lupine
Donner Lake lupine, dwarf lupine, Lobb's lupine, Pacific lupine, prairie lupine, prostrate lupine, stool lupine, tidy lupine
ascending, tufted, or erect, branched or unbranched.
acaulescent or prostrate to ± erect, unbranched or branched.
cauline;
petiole 2–7 cm, spreading-pubescent;
leaflets 5–9, blades 10–30 × 1.5–8 mm, surfaces pubescent.
usually basal, sometimes cauline present;
stipules 3–25 mm;
petiole 2–13 cm;
leaflets 5–8, blades 5–40 × 3–7 mm, surfaces pubescent.
1–18 cm;
flowers spirally arranged, solitary axillary flowers also sometimes present.
dense, 3–20 cm, not exceeding to exserted beyond leaves;
flowers whorled, usually crowded.
erect, 2–8 cm;
bracts persistent, straight, 2.5–4 mm.
2–13 cm;
bracts usually persistent, 4–15 mm.
0.7–2 mm.
0.4–3 mm.
5–12 mm;
calyx 3–5 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft;
corolla usually pink to purple, rarely white, banner spot white or yellowish, keel usually glabrous, rarely with few, minute cilia on lower margins.
6–13 mm;
calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 4–7 mm, adaxial lobe entire or 2-toothed, 3–7 mm;
corolla pink, violet, or blue, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate.
1–1.5 cm, pubescent.
1–2 cm, hairy.
deciduous, petiolate.
deciduous, petiolate.
3–5.
2–6, ± mottled tan or green to brown, 2–4 mm.
= 48.
Lupinus concinnus
Lupinus lepidus
In Texas, Lupinus concinnus is known from the trans-Pecos region; in California it is more common in the central and southern areas.
Lupinus concinnus is a highly variable, predominantly self-pollinated complex and the named varieties cannot be consistently segregated. Desert plants with linear, coarsely hairy leaflets and few, minute cilia on lower keel margins (at times recognized as var. desertorum) may be confused with L. sparsiflorus.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 10 (10 in the flora).
Dwarf perennial lupines are usually characterized by a cespitose habit, persistent inflorescence bracts, banners that are glabrous abaxially, and ciliate keel petals. The history of the taxonomy of this group was discussed in detail by B. J. Cox (1972), R. C. Barneby (1989), and K. A. Weitemier (2010). Barneby gave justification for his conservative treatment of this taxon, which is generally followed here. Genetic analysis in lupines has shown little separation, according to Weitemier, but he suggested that there is good evidence to retain these variations as varieties, following Barneby, rather than elevating them to species level.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Racemes not exceeding leaves, or only partially so. | → 2 |
2. Banner recurved, reflexed, 3+ mm wide. | var. aridus |
2. Banner not or scarcely recurved, overhanging wings, 2.5–3 mm wide. | → 3 |
3. Stems present and branched; leaves basal and cauline; racemes loose; pedicels 2.5–. | var. cusickii |
3. Stems very short or absent, densely tufted; leaves basal; racemes dense; pedicels 0.4–. | → 1 |
1. 5 mm. | var. utahensis |
1. Racemes entirely exserted beyond leaves. | → 4 |
4. Leaves clustered near base (appearing ± basal); herbs appearing acaulescent or shortly caulescent. | → 5 |
5. Flowers 9–12 mm; leaflet blades 10–20 mm; rare, only from Mt. Ashland, Oregon. | L. lepidus var ashlandensis |
5. Flowers 6–9(–10) mm; leaflet blades 5–30 mm; British Columbia southward to California, eastward to Idaho, Nevada. | → 6 |
6. Racemes ± dense, 2–8 cm; herbs to 1 dm; leaflet blades 5–10 mm; elevation (1600–)2000–3500 m. | var. lobbii |
6. Racemes elongate, (2–)4.5–11(–15) cm; herbs 1.2–3.5 dm; leaflet blades 10–30 mm; elevation 1000–2500 m. | var. sellulus |
4. Leaves usually spread along stems or at least with some tufts of cauline leaves; herbs usually strongly caulescent (except stems short or absent in var. culbertsonii). | → 7 |
7. Flowers 10–14 mm; Alberta, British Columbia, Alaska, Oregon, Washington. | var. lepidus |
7. Flowers 7–11.5(–12) mm; California, Nevada. | → 8 |
8. Racemes dense, (5–)12–30 cm; flowers in 9–12 whorls, dense; leaves cauline; elevation (300–)1500–2500(–3200 m). | var. confertus |
8. Racemes usually open, 2–10(–12) cm; flowers in (2 or)3–7 whorls, ± well spaced; leaves basal and cauline; elevation 1900–4000 m. | → 9 |
9. Leaflet blades usually 10–30 mm; flowers (9–)10–11.5 mm; elevation 1900–3600 m. | var. culbertsonii |
9. Leaflet blades usually 5–15(–30) mm; flowers usually 7–9(–12) mm; elevation 2300–4000 m. | var. ramosus |
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria 
WildflowerSearch
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USDA Plants Database- LBJ Wildflower Center
- SEINet
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