PEA FAMILY i 79 



c. Pods neither fleshy nor inflated and papery 



(1) Pods linear-oblong, flattened, 12-25 mm. 



long, 2-3 mm. wide 

 (a) Plants stemless or nearly so, silvery-silky A. scaposus 

 (b). Plants stemmed, 3-15 in. high, finely 



hairy - 1, nuttallidnus 



(2) Pods ovate to broadly oblong 



(a) Stems and leaves densely woolly or 



felted; leaflets 15-29; corolla purple 

 x. Pods smooth A. mollissimus 



y. Pods densely woolly A. Bigelovii 



(b) Stem and leaves not densely woolly, but 



smooth or finely hairy 

 x. Flowers yellowish to greenish; stems 1- 

 5 ft. high ; flowers spreading or re- 

 flexed in a long cluster; pods smooth A. carolinianus 

 y. Flowers blue to purple, more rarely 

 whitish or yellowish, ascending, in a 

 head-like cluster 

 (x) Flower cluster ovoid; calyx black- 

 hairy ; leaflets mostly less than 1 

 cm. long; pods with long spread- 

 ing hairs A. hypo glottis 

 (y) Flower cluster usually oblong ; calyx 

 white-hairy; leaflets 1-2 cm. long; 

 pods with close gray or black hairs A. adsurgens 



Dalea Jussieu 1789 Dalea 



(Named for Dale, an English botanist) 



(Parosela Cavanilles 1802) 



PL 29, fig. 6. 



Sepals 5, united into an equally toothed tube, petals 5, purple, red, yel- 

 low, or white, often long-clawed, wings and keel united below to the stamen- 

 tube, stamens 10 or 9, united, pod enclosed in the calyx, usually 1-seeded 

 and remaining closed ; flowers in racemes or spikes ; leaves odd-pinnate of 

 3-41 leaflets, dotted with tiny glands ; herbs or shrubs. 

 1. Flowers white, rose or purple, not yellow; plants 

 mostly smooth 

 a. Leaflets 5-13 ; flowers in a loose cluster 



(1) Stems shrubby; flowers rose-purple D. formosa 



(2) Stems herbaceous 



