Glabrous, aromatic biennials or perennials with thick tap-root; stems stout, erect, usually with papery remains of leaves at base. Leaves mainly basal, pinnate, oblong in outline, stiffly subcoriaceous; leaflets ovate with coarsely serrate margin; petiole abruptly winged and sheathing at base. Umbels compound; bracts lobed and coarsly toothed at apex, stiffly-papery; umbellules crowded, pedicels very short; bracteoles numerous, similar to bracts but shorter, rigid, persistent and remaining erect after fruiting. Calyx teeth small, triangular-acute, persistent in fruit. Petals broadly oblong–obovate, entire. Stylopodium flat-domed. Fruit green with blackened tip, narrowly oblong, slightly compressed laterally, mericarps 5-ridged, ridges with narrow wing.
Pleurospermopsis sikkimensis (C.B.Clarke) C.Norman
Bhutan: C—Ha district (Damthang
to Sharithang) and Thimphu district (Bimelang Tso to Dungtsho La, Darkey
Pang Tso, Phajoding); N—Upper Mo Chu district (Laya, Yale La).
Ecology: Amongst rocks and
shrubs in moorland, scree, etc. 3900–4250m.
Illustration [Fig. 49 j-l]
Specimen List 
Note: A distinctive monotypic genus endemic to high elevations in Bhutan, Chumbi and Sikkim.