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小花离子芥

增加 941 位元組, 4 年前
無編輯摘要
种子淡褐色,宽椭圆形,长约1.5毫米;子叶缘倚胚根。花果期5-7月 。
 
Herbs perennial, 4-15(-28) cm tall, with stout, branched or simple caudex, glandular throughout, sparsely covered with simple trichomes to 1 mm. Basal leaves rosulate; petiole 0.5-2.5(-4) cm, ciliate, expanded at base; leaf blade broadly oblanceolate or linear-lanceolate, 0.5-3(-4) cm × 2-7(-15) mm, glandular, base cuneate or attenuate, margin subentire, dentate, sinuate-dentate, or pinnatifid and with up to 8, oblong or ovate lobes, apex acute or obtuse. Cauline leaves absent. Flowers in racemes. Fruiting pedicels (6-)7-10(-15) mm, glandular. Sepals yellowish, ovate, 2-3(-3.5) × 1.5-2 mm. Petals yellow, 5-8(-10) × 2-4 mm; blade broadly obovate, emarginate at apex; claw 3-5 mm. Filaments 2-3 mm; anthers oblong, ca. 1.5 mm. Fruit linear-cylindric, 1-1.5(-2) cm × 2-2.3 mm, corky, strongly torulose, with 5-8 constrictions on each side, glandular; style 2-4 mm. Seeds brown, oblong, 1.1-1.3 × 0.6-0.8 mm. Fl. and fr. Jun-Jul.
 
==小花离子芥生长环境==
生长于海拔3200-3700米的砂砾地。
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