Isotropis
(from isos, equal, and tropis, a keel; in reference to the shape of the carina). ORD. Leguminosae. A genus of eight species of greenhouse herbs or under-shrubs, with diffuse or ascending stems. Flowers solitary, on axillary peduncles, or forming a loose terminal raceme. Leaves alternate, simple or unifoliolate, with linear-falcate or minute stipules. The species are all Australian. I. striata, perhaps the only one in cultivation, requires treatment similar to Chorizema (which see).
I. striata (striated). fl., standard yellow with purple streaks, large; wings and keel purple. Spring. l. not numerous; lower ones obovate or cuneate, very obtuse, truncate or broadly two-lobed; upper ones narrower, and sometimes acute. Some branches quite leafless and dichotomous. h. 6in. to 18in. A hairy perennial or under-shrub. SYN. Chorizema spartioides (under which name it is figured in L. B. C. 1953).