This section is from the book "Catalogue Of Canadian Plants IV-VII", by John Macoun. Also available from Amazon: Catalogue of Canadian plants.
(3102.) L. Nuttallii, Watson, Proced. Amer. Acad., XII., 450.
L. venosus, Macoun, Cat. I, 121, in part.
Stout and tall, more or less pubescent throughout, with loose woolly hairs; stipules, semi-sagittate, rather narrow; leaflets, 3 to 6 pairs, variable, narrowly or broadly elliptical, usually acute or acutish at both ends, apiculate, 1 or 2 inches long; rachis, tendril-bearing; peduncle shorter than the leaves, few-flowered; calyx teeth triangular, acuminate, the lower somewhat larger; petals reddish purple, (I to 8 lines long; pod, glabrous, oblong, attenuate to a very short thick stipe, 1 to 1 1/2 inches long by 4 lines wide; seeds, globose, brown. Common in thickets in British Columbia and Vancouver Island. In Part I., 121, this species was included in L. venosus, but is now separated by Dr. Watson.
 
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