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FOC | Family List | FOC Vol. 8 | Brassicaceae | Draba

9. Draba sekiyana Ohwi, Repert. Spec. Nov. Regni Veg. 36: 51. 1934.

台湾葶苈 tai wan ting li

Herbs perennial, 3-6 cm tall, densely cespitose. Caudex several branched, ultimate branches terminated in sterile shoots or rosettes, covered with leaf remains of previous years. Stems erect, simple, moderately pilose or puberulent with crisped, primarily simple trichomes. Basal leaves rosulate, persistent; petiole to 5 mm, ciliate with simple trichomes; leaf blade lanceolate to oblanceolate, 4-10 × 1-2 mm, sparsely to moderately pilose with simple and much fewer, short-stalked forked trichomes, base attenuate, margin entire, apex obtuse to acute. Cauline leaves 1-3, sessile; leaf blade oblong to narrowly ovate, similar in idumentum to basal leaves. Racemes 4-8-flowered, ebracteate or rarely lowermost flower bracteate, elongated in fruit. Fruiting pedicels 4-12 mm, ascending to suberect, straight or slightly curved, slender, pilose or puberulent all around with simple trichomes. Sepals oblong, 1.5-2 × 0.6-0.8 mm, erect, abaxially sparsely pilose with simple trichomes sometimes mixed with much fewer ones, base of lateral pair not saccate, margin not membranous. Petals white, narrowly obovate, 2.5-3 × 0.9-1.1 mm, apex rounded. Filaments 1-1.7 mm; anthers ovate, 0.3-0.4 mm. Ovules 14-20 per ovary. Fruit oblong to elliptic, 5-10 × 1.5-2.5 mm, not inflated, latiseptate, slightly twisted; valves glabrous, obscurely veined, base obtuse, apex acute; style 0.1-0.4 mm. Seeds brown, oblong, ca. 1.1 × 0.6 mm. Fl. and fr. Aug-Sep.

* Mountain summits; 3000-3900 m. Taiwan.


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