PEA FAMILY 491 



14. Lupinus hirsutissimus Benth. Nettle Annual Lupine. Fig. 2573. 



Lupinus hirsutissimus Benth. Trans. Hort. Soc. Lond. II. 1: 141. 1833. 



Hirsute with nettle-like stiff hairs 3-5 mm. long, stout, fistulous, 2-6 dm. tall. Leaves long- 

 petioled, leaflets 5-8, broadly cuneate-obovate, 2-5 cm. long, 15-20 mm. wide ; peduncles 5-8 cm. 

 long, racemes 10-25 cm. long; flowers 13-15 mm. long, scattered, spreading, pedicels 3-4 mm. 

 long ; upper calyx-lip cleft, lower entire or tridentate ; petals violet or lilac, banner suborbicular, 

 keel stout, straight on the upper edges, ciliate on the lower edges near claws ; pods 25-35 mm. 

 long, very hirsute, ovules about 7, seeds 3-4 mm. long, pale and obscurely marked or densely 

 marbled with dark brown. 



Foothills and interior valleys, Upper Sonoran Zone; San Mateo County, California, to Lower California. 

 Type locality: California (Douglas). March-May. 



15. Lupinus truncatus Nutt. Nuttall's Annual Lupine. Fig. 2574. 



Lupinus truncatus Nutt. ex Hook. & Arn. Bot. Beechey 336. 1840. 



Glabrate or sparsely appressed-hairy, 3-6 dm. tall, branched. Leaves glabrate, petioles 2-8 

 cm. long, usually flattened, leaflets 5-7, linear, truncate, emarginate, or dentate at the apex, 2-4 

 cm. long; peduncles 3-10 cm. long, racemes 6-15 cm. long, lax and few-flowered; flowers 10-12 

 mm. long, spreading or drooping after anthesis, pedicels 2-3 mm. long, bracts usually persistent ; 

 upper calyx-lip cleft, lower entire or tridentate ; petals violet or pale purple, keel densely ciliate 

 on the upper edges and near the claws below, its acumen stout and blunt ; pods spreading, villous, 

 about 3 dm. long, ovules 6 or 7, seeds about 3 mm. long, rhomboidal, plump, obscurely or con- 

 spicuously marked. 



Open woods and foothills, mostly Unper Sonoran Zone; Monterey County, California, to Lower California. 

 Type locality: San Diego, California. March-May. 



16. Lupinus Benthamii Heller. Bentham's Annual Lupine. Fig. 2575. 



Lupinus Benthamii Heller, Muhlenbergia 2: 61. 1905. 



Lupinus leptophyllus Benth. Trans. Hort. Soc. Lond. II. 1: 141. 1835. Not Lupinus leptophyllus Cham. & Sch. 

 Linnaea 5: 589. 1830. 



Villous, slender, erect, 3-6 dm. tall, simple or branched at the base. Leaves long-petioled, 

 glabrate above, petioles slender, 5-12 cm. long, leaflets 7-10, linear, 2-5 cm. long; peduncles 5-10 

 cm. long, racemes 10-20 cm. long ; flowers 10-12 mm. long, spreading, bracts linear, exceeding 

 the buds, long-villous, deciduous, pedicels 3-6 mm. long ; upper calyx-lip cleft, lower tridentate ; 

 petals blue, banner suborbicular, the yellow center becoming violet or reddish, keel slender, 

 curved, ciliate on the lower edges near claws; pods 2-3 cm. long, ovules 3 or 4, seeds 2 mm. 

 long, marked with brown. 



Moist slopes, mostly near streams, Upper Sonoran Zone; Sierra foothills, Sacramento County to Kern, Santa 

 Barbara, and Monterey Counties, California. Type locality: California (Douglas). March-June. 



Lupinus Benthamii var. opimus C. P. Smith, Bull. Torrey Club 47: 506. 1920. Larger in all parts except 

 the calyx; stems fistulous; leaflets longer, 2-3 mm. wide; racemes 20-30 cm. long; flowers 14-16 mm. long, 

 pedicels 7-9 mm. long; banner as wide or wider than long, keel more curved. Upper Sonoran Zone; Eldorado 

 County to Los Angeles and San Luis Obispo Counties, California. Type locality: Pollasky, Madera County, 

 California. 



17. Lupinus sparsifldrus Benth. Loosely-flowered Annual Lupine. Fig. 2576. 



Lupinus sparsiflorus Benth. PI. Hartw. 303. 1848. 



Lupinus subhirsutus Davidson, Proc. S. Calif. Acad. 18: 80. 1919. 



Appressed-pubescent and more or less villous or subhirsute, 2-4 dm. tall, slender, branched. 

 Leaves long-petioled, hairy or glabrate above, petioles 3-8 cm. long, leaflets 5-9, linear to oblanceo- 

 late, angled at apex; peduncles 2-8 cm. long, racemes 8-20 cm. long; flowers 8-13 mm. long, 

 spreading in anthesis, soon becoming suberect, bracts villous, exceeding the buds, early deciduous, 

 pedicels 2-3 mm. long ; petals bright blue or purplish, banner with a yellow spot, suborbicular, 

 keel curved, usually ciliate on the lower edges near claws and often also on the upper margins ; 

 pods ascending, 12-18 mm. long, ovules 5-6, seeds 2-3 mm. long, angled, dotted or marbled on a 

 pale ground. 



Grassy hillsides, clays or sands, Lower and Upper Sonoran Zones; Ventura County, California, to southern 

 Nevada, Arizona, and Lower California. Type locality: collected by Coulter but locality not stated. Feb.-May. 



Lupinus sparsiflorus var. arizonicus (S. Wats.) C. P. Smith, Bull. Torrey Club 47: 495. 1920. (Lupinus 

 concinnus var. arizonicus S. Wats. Proc. Amer. Acad. 8: 537. 1873; Lupinus arisonicus S. Wats. Proc. 

 Amer. Acad. 12: 250. 1876.) Plants mostly 1-2 dm. tall; flowers 8-10 mm. long. Desert sands, Lower Sonoran 

 Zone; southeastern California to Sonora, Arizona, and southern Nevada. Type locality: in Arizona and south- 

 eastern California. 



Lupinus sparsiflorus var. barbatulus Thornber, Bull. Torrey Club 47: 497. 1920. # Stems stout and fistu- 

 lous; petals pale lilac or purplish. Lower Sonoran Zone; southeastern California and adjacent Arizona to Lower 

 California. Type locality: valley of the Colorado River, Arizona. 



Lupinus sparsiflorus var. inopinatus C. P. Smith, Bull. Torrey Club 47: 499. 1920. Branched above the 

 middle; leaflets broadest at the apex, where truncate, rounded, or emarginate; racemes lax, 6-15 cm. long. Upper 

 and Lower Sonoran Zones; Cajon Pass, California, to Lower California. Type locality: San Diego, California. 



Lupinus sparsiflorus var. Pondii (Greene) C. P. Smith, Bull. Torrey Club 47: 501. 1920. (Lupinus 

 Pondii Greene, Pittonia 1: 288. 1899.) Much like the last, but lower, branched at the base; racemes compact, 

 2-8 cm. long. Upper Sonoran Zone; San Diego County, California, to Lower California. Type locality: low 

 plains around the southern shore of San Bartolome Bay, Lower California. 



18. Lupinus deflexus Congdon. Congdon's Annual Lupine. Fig. 2577. 



Lupinus deflexus Congdon, Muhlenbergia 1 : 38. 1904. 



Short-hairy, becoming glabrate, simple or branched from the base, 2-4 dm. tall. Leaflets 



