Flora of North America species comparison

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Lupinus latifolius

Lupinus latifolius var. latifolius

broad-leaf lupine
Photo is of parent taxon

broad-leaf lupine
Habit Herbs, perennial, 3–24 dm, not fleshy, green, glabrous or hairy. Herbs to 10(–15) dm.
Stems

erect or spreading, branched or unbranched.

not hollow, glabrous or puberulent.
Leaves

cauline, basal when present withered by anthesis;

stipules 5–10 mm;

petiole 4–20 cm;

leaflets 5–11, blades 40–100 × 6–24 mm, abaxial surface ± hairy, adaxial surface glabrous or hairy.

Racemes

16–60 cm;

flowers whorled or spirally arranged.

Peduncles

8–20 cm;

bracts deciduous, 8–12 mm.

Pedicels

2–12 mm.

Flowers

8–18 mm;

calyx abaxial lobe entire or notched, 4–8 mm, adaxial lobe entire or 2-toothed, 5–10 mm;

corolla blue or purple to white, banner patch usually white to yellowish turning purple, banner glabrous abaxially, lower keel margins usually ciliate, adaxial margin ciliate from claw to middle.

10–14(–16) mm.
Legumes

2–4.5 cm, ± densely hairy.

Cotyledons

deciduous, petiolate.

Seeds

6–10, mottled dark brown, 3–4 mm.

Lupinus latifolius

Lupinus latifolius var. latifolius
Phenology Flowering Apr–Sep.
Habitat Mesic areas, streamsides, open woodlands.
Elevation 0–3500 m. [0–11500 ft.]
Distribution
from USDA
w North America; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; OR; WA; BC; YT; Mexico (Baja California)
[BONAP county map]
Discussion

Varieties 5 (5 in the flora).

Various authors have differed in their circumscriptions of Lupinus latifolius. For example, P. K. Vaughn and D. B. Dunn (1977) recognized three varieties, D. Isely (1998) recognized six varieties, and C. L. Hitchcock et al. (1955–1969, vol. 3) recognized three varieties. The most conservative approach has been taken here by recognizing taxa that have the clearest characteristics, but that approach might not reflect phylogeny. Research is needed to clarify the varieties and particularly the relationships among L. latifolius and L. arcticus, L. perennis, and L. polyphyllus.

Lupinus latifolius is known to cause birth defects in livestock (R. F. Keeler et al. 1977).

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

Variety latifolius is known from throughout coastal and montane areas of cismontane California northward through western Oregon and Washington into British Columbia and Yukon, and in Mohave and Yavapai counties, Arizona.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Flowers 8–14 mm.
→ 2
2. Flowers 10–14(–16) mm.
var. latifolius
2. Flowers 8–10(–12) mm.
var. viridifolius
1. Flowers 12–18 mm.
→ 3
3. Stems densely hairy, not hollow; San Francisco Bay area, California.
var. dudleyi
3. Stems glabrate or sparsely strigose, hollow; sw California or n Oregon to British Columbia.
→ 4
4. Herbs 5–20 dm, caudex often unbranched; Arizona, California.
var. parishii
4. Herbs 2.5–6 dm, caudex branched; n Oregon to British Columbia.
var. subalpinus
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus Fabaceae > subfam. Faboideae > Lupinus > Lupinus latifolius
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. 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. sparsiflorus, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus
L. latifolius var. dudleyi, L. latifolius var. parishii, L. latifolius var. subalpinus, L. latifolius var. viridifolius
Subordinate taxa
L. latifolius var. dudleyi, L. latifolius var. latifolius, L. latifolius var. parishii, L. latifolius var. subalpinus, L. latifolius var. viridifolius
Synonyms L. rivularis var. latifolius L. arcticus subsp. canadensis, L. caudicifer, L. columbianus, L. columbianus var. simplex, L. lasiotropis, L. latifolius var. canadensis, L. latifolius var. columbianus, L. latifolius var. leucanthus, L. latifolius var. ligulatus, L. latifolius subsp. longipes, L. latifolius var. longipes, L. latifolius var. simplex, L. latifolius var. thompsonianus, L. leucanthus, L. ligulatus, L. longipes, L. sericeus var. thompsonianus, L. suksdorfii
Name authority J. Agardh: Syn. Lupini, 18. (1835) unknown
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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