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

2. Arabidopsis halleri (Linnaeus) O’Kane & Al-Shehbaz subsp. gemmifera (Matsumura) O'Kane & Al-Shehbaz, Novon. 7: 325. 1997.

叶芽鼠耳芥 ye ya shu er jie

Cardamine gemmifera Matsumura, Bot. Mag. (Tokyo) 8: 49. 1899; Arabis coronata Nakai; A. gemmifera (Matsumura) Makino; A. gemmifera var. alpicola H. Hara; A. greatrexii (Miyabe & Kudo) Miyabe & Tatewaki; A. halleri Linnaeus var. senanensis Franchet & Savatier; A. maximowiczii N. Busch; A. senanensis (Franchet & Savatier) Makino; Cardamine greatrexii Miyabe & Kudo; Cardaminopsis gemmifera (Matsumura) Berkutenko.

Herbs perennial, stoloniferous, (10-)20-45(-60) cm tall. Stems decumbent, few from base, simple or branched above, basally with simple and 1-forked trichomes, apically glabrous. Basal leaves with a petiole (5-)1-2.5(-5) cm; leaf blade orbicular, broadly ovate, or spatulate, (1-)2-4.5(-9) × (0.5-)1-1.5(-2.5) cm, adaxially with a mixture of simple and stalked, 1- or 2-forked trichomes, margin lyrate-pinnatifid and with (1 or)2-4(-6) lateral lobes on each side; terminal lobe suborbicular, much larger than lateral ones, sometimes coarsely dentate, rarely entire or repand, apex obtuse. Cauline leaves shortly petiolate, several; blade of middle ones ovate, oblanceolate, oblong, or elliptic, (0.5-)1-2.5(-8) × (0.2-)0.5-1.5(-3) cm, coarsely toothed or rarely lobed, gradually reduced in size upward. Fruiting pedicels slender, divaricate or slightly reflexed, straight, (0.5-)0.8-1.3(-2) cm. Sepals 1.5-2 mm, glabrous or apically with few simple trichomes, lateral pair saccate. Petals white or pale purple, obovate, 4-5(-6.5) × 2-2.5(-3.5) mm; claw 1-2 mm. Filaments white, 2-2.5 mm. Siliques linear, flattened, torulose, (0.9-)1-1.5(-1.8) cm × 0.5-0.8 mm; valves without a distinct midvein; style to 0.7 mm. Seeds oblong, flattened, light brown, 0.5-0.7 mm; cotyledons accumbent. Fl. Jun-Jul, fr. Jul-Aug.

Gravely or grassy slopes, forests; 1500-2600 m. Heilongjiang, Jilin, Liaoning, Taiwan [Japan, Korea, Russia (Far East, E Siberia)].

The record of Arabidopsis halleri subsp. halleri in FRPS (as Arabis halleri) is based on misidentified plants of subsp. gemmifera; true subsp. halleri is distributed in E and S Europe.


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