Flora of North America species comparison

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Lupinus sparsiflorus

Coulter's lupine, Mojave lupine
Habit Herbs, annual, 1.5–4 dm, strigose, hairs short and appressed, also pilose, hairs long and spreading.
Stems

ascending or erect, branched or unbranched.
Leaves

cauline;

petiole (1–)3–7 cm;

leaflets (5–)7–11, blades (7–)15–30(–45) × 2–5 mm, adaxial surface glabrous or pubescent, at least marginally.
Racemes

10–25 cm;

flowers spirally arranged.
Peduncles

2–4 cm;

bracts usually deciduous, 3–5 mm, shorter than buds.
Pedicels

2–5 mm.
Flowers

10–12(–13) mm;

calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft;

corolla usually blue, rarely pinkish, drying darker, banner spot whitish becoming magenta, lower keel margins ciliate near claw, upper margins often ciliate near claw.
Legumes

1–2 cm, coarsely pubescent.
Cotyledons

deciduous, petiolate.
Seeds

4 or 5.

Lupinus sparsiflorus
Phenology Flowering spring (Mar–May).
Habitat Washes, sandy areas, chaparral, grasslands, coastal sage scrub, Joshua tree/mesquite woodlands, creosote bush scrub.
Elevation 0–1500 m. (0–4900 ft.)
Distribution
from FNA
AZ; CA; NV; UT; Mexico (Baja California, Baja California Sur, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Plants from the Mojave Desert often have smaller flowers and have been named subsp. mohavensis, and those from western San Diego County with pinkish flowers and truncate leaflets have been named var. inopinatus.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus
Sibling taxa
L. adsurgens, L. affinis, L. albicaulis, L. albifrons, L. andersonii, L. angustiflorus, L. antoninus, L. apertus, L. arboreus, L. arbustus, L. arcticus, L. argenteus, L. arizonicus, L. benthamii, L. bicolor, L. brevicaulis, L. breweri, L. cervinus, L. chamissonis, L. citrinus, L. concinnus, L. constancei, L. covillei, L. croceus, L. dalesiae, L. diffusus, L. duranii, L. elatus, L. elmeri, L. excubitus, L. flavoculatus, L. formosus, L. fulcratus, L. gracilentus, L. grayi, L. guadalupensis, L. havardii, L. hirsutissimus, L. huachucanus, L. hyacinthinus, L. kingii, L. kuschei, L. lapidicola, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. longifolius, L. ludovicianus, L. luteolus, L. magnificus, L. malacophyllus, L. microcarpus, L. nanus, L. neomexicanus, L. nevadensis, L. nipomensis, L. nootkatensis, L. obtusilobus, L. odoratus, L. onustus, L. oreganus, L. pachylobus, L. padrecrowleyi, L. peirsonii, L. perennis, L. polyphyllus, L. pratensis, L. pusillus, L. rivularis, L. sabineanus, L. sericatus, L. sericeus, L. shockleyi, L. sierrae-blancae, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus
Synonyms L. pondii, L. sparsiflorus subsp. inopinatus, L. sparsiflorus var. inopinatus, L. sparsiflorus subsp. mohavensis, L. sparsiflorus var. mohavensis, L. sparsiflorus var. pondii
Name authority Bentham: Pl. Hartw., 303. (1849)
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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