Stock us. multicipital, each branch bearing a dense rosette of lvs, the whole plant forming cushionlike masses up to 6 dm. diam. and 10 cm. tall. Lvs simple, sessile on submembr. sheaths up to ± 4 cm. × 10 mm. Lamina straight or curved, exstipulate, concavo-convex, 3-10 cm. long, tapering to blunt but mucronulate apex; hard, rigid. with thickened margins. Stems stout, grooved, up to c. 10 cm. × 5 mm.; infl. a ± globose panicle, with oblong-lanceolate, acute bracts up to 2.5 cm. long. Umbels few, densely fld, forming an infl. up to c. 5 cm. diam., on peduncles 10-25 mm. long. Umbellules globose, up to c. 15 mm. diam; rays very slender, short. Umbellules of female plants up to c. 3 cm. diam.
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