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Arabidopsis halleri (L.) O'Kane & Al-Shehbaz Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Publicado en: Novon 7(3): 325. 1997. (Novon) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Datos del Proyecto Nombre (Last Modified On 7/21/2009)
 

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5. Arabidopsis halleri (Linnaeus) O’Kane & Al-Shehbaz, Novon 7: 325. 1997.

Herbs, perennial, stoloniferous. Stems (7–)20–65(–80) cm, decumbent, few from base, simple or branched above, basally with simple and 2- or 3-rayed forked trichomes, apically glabrous. Basal leaves rosulate; petiole (5–)1–2.5(–5) cm; leaf blade orbicular to broadly ovate, (1–)2–4.5(–9) x  (0.5–)1–1.5(–2.5) cm, adaxially with a mixture of simple and stalked, 1- or 2-forked trichomes, margin pinnatifid to lyrate-pinnatifid and with (1 or)2–4(–7) suborbicular 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, (3–)5–20(–24); blade of middle and lower ones ovate to oblong or lanceolate, (0.5–)1–2.5(–8) x (0.2–)0.5–1.5(–3) cm, coarsely toothed or rarely lobed, gradually reduced in size upward. Fruiting pedicels divaricate or slightly reflexed, straight, (0.5–)0.8–1.3(–2) cm. Sepals 1.5–3(–3.5) mm, glabrous or apically with few simple trichomes, lateral pair saccate; petals white, lilac, or purplish, obovate, 4–7(–8) x 2–3.5(–4) mm; claw entire; filaments white, 2–2.5 mm; ovules 14–18 per ovary. Fruits linear, flattened, torulose, (0.9–)1–2.5(–3) cm x 0.6–1 mm; replum constricted between seeds; valves not veined or with an obscure midvein; gynophore slender, to 0.7 mm; style slender, to 1 mm. Seeds oblong, flattened, light brown, 0.8–1.2 mm, wingless; cotyledons accumbent. 2n=16.

Flowering: May–Aug.

Habitats: slopes, forest margins, rocky crevices, gravelly or grassy slopes, forests, shaded and most areas.

Elevation: 0–2600 m.

Distribution: Albania, Austria, Belgium, Bosnia and Herzegovenia, Croatia, Czech Republic, N France, Germany, N and C Italy, Moldova, Poland, Romania, Serbia, Slovakia, Slovenia, Switzerland, and S Ukraine; NE China, Korea, Japan, Russian Far East, Taiwan.

Three subspecies.

 

 

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                    Key to the subspecies of Arabidopsis halleri

1. Basal leaves entire or with weakly developed lateral lobes; lower stem leaves orbicular

to ovate, entire or crenate; flowering stems few, sparsely branched above; petals light

purple to pale lavender .................................................................................... 5b. subsp. ovirensis

1. Basal leaves pinnatifid or lyrate; lower stem leaves oblong and dentate; flowering

stems numerous, branched at base and often also above; petals white or pale lavender.

     2. Basal leaves pinnatifid, with 1–7 lateral lobes; petals white or lavender; plants 20–45

          cm; Europe .................................................................................................... 5a. subsp. halleri

     2. Basal leaves lyrate; petals white; plants 40–80 cm; Russian Far East, NE China,

          Korea, Japan, and Taiwan ....................................................................... 5c. subsp. gemmifera

 

 


 

 
 
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