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Practical ecological knowledge for the temperate reader. |
Family: Brassicaceae (Mustard family) [E-flora]
"Biennial, perennial herb, erect; hairs simple or 0. Stem: angled. Leaf: basal petioled, rosetted, pinnately lobed, terminal lobe > lateral; cauline dentate or pinnately lobed; middle, distal sessile, base lobed. Inflorescence: terminal; bracts 0. Flower: sepals erect or spreading, base not sac-like; petals yellow, ± clawed. Fruit: silique, linear, dehiscent, unsegmented, cylindric to ± 4-sided or flat parallel to septum; valves strongly 1-veined, glabrous; stigma entire to ± 2-lobed. Seed: 10–40, in 1 row, wingless.
22 species: North America, Eurasia, Australia, northern Africa. (Saint Barbara)" [Jepson]
"Introduction European weed has persisted since ca. 1994 along a 1 km stretch of road in Surrey, but has not spread. (Lomer 95-104 @ UBC)" [E-flora]
References
"Barbarea orthoceras is a PERENNIAL. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Flies, bees, beetles, self.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil." [PFAF]
"General: Biennial (occasionally perennial) from a taproot and a simple stem-base; stems stiff, erect, angled, branched, (10) 20-60 cm tall." [IFBC-E-flora]
"Habitat / Range Moist streambanks, meadows and forests in the lowland, steppe and montane zones; common along the coast, less frequent elsewhere in BC; N to AK, YT and NT, E to NF, and S to MN, NH, CO, AZ and CA." [IFBC-E-flora]
Origin Status: Native [E-flora]
Cultivation & Propagation
"We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. The following notes are based on the general needs of the genus. Succeeds in sun or shade in a moist well-drained soil[200]." [PFAF]
"Seed - sow in situ in early spring to early summer." [PFAF]
"Barbarea verna is a BIENNIAL growing to 0.3 m (1ft) by 0.3 m (1ft in). It is hardy to zone (UK) 6 and is not frost tender. It is in flower from May to July, and the seeds ripen from Jun to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Flies, bees, beetles, self.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in full shade (deep woodland) semi-shade (light woodland) or no shade. It prefers moist soil." [PFAF]
"General: Biennial (rarely perennial) from a taproot and a simple stem-base; stems (20) 30-80 cm tall, stiff, erect, angled and branched." [IFBC-E-flora]
"Habitat / Range Mesic to dry fields and waste places in the lowland, steppe and montane zones; rare in S BC; introduced from Eurasia." [IFBC-E-flora]
Origin Status: Exotic [E-flora]
"Succeeds in sun or shade in a moist well-drained soil,[200] growing well on a north facing wall[33, 52]. The summer crop is best if it is given some shade whilst the winter crop succeeds in sunny positions[1, 200]. Land cress is often cultivated as a salad plant, when it is usually treated as an annual[46]. It can supply leaves all year round from successional sowings[1]. In hot weather plants soon run to seed unless they are kept shaded and moist[183]. The leaves taste much hotter in the summer[K]. Plants usually self-sow freely when growing in a suitable position[K]." [PFAF]
"Seed - sow spring to September in situ at 3-weekly intervals to provide a succession of leaves. Germination usually takes place within 2 - 3 weeks." [PFAF]
"Barbarea vulgaris is a PERENNIAL growing to 0.4 m (1ft 4in). It is hardy to zone (UK) 6 and is not frost tender. It is in flower from May to August, and the seeds ripen from Jul to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Flies, bees, beetles, self.The plant is self-fertile.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil." [PFAF]
"General: Biennial from a taproot and a simple stem-base; stems 20-80 cm tall, coarse, erect, angled and branched.." [IFBC-E-flora]
"Habitat / Range Moist to wet roadsides, fields and disturbed areas in the steppe and montane zones; frequent in S BC, rare northward; introduced from Eurasia." [IFBC-E-flora]
Origin Status: Exotic [E-flora]
"There is a report that ingestion of the leaves can lead to kidney malfunction[222]." [PFAF]
Soil Reclamation: "Barbarea vulgari demonstrated the capability to accumulate and translocate pesticides from roots to above ground tissues. Concentration of pesticide in above ground tissue exceeded concentration in root tissue, giving a translocation factor of greater than one." [OPPPS]
"Succeeds in sun or shade in a moist well-drained soil[1, 111]. Tolerates a pH in the range 4.8 to 7.5. The plant can continue to grow all winter, especially if the weather is mild[183]. A short-lived perennial[1], though plants usually self-sow freely when in a suitable position[K]. There is at least one named form, developed for its ornamental value. 'Variegata' has variegated leaves and grows less strongly than the type[183]. A good bee plant[108]." [PFAF]
"Seed - sow spring or autumn in situ. Germination usually takes place within 2 - 3 weeks. Division in spring. his plant is a short-lived perennial, and also usually self-sows freely, so we have not found division to be worthwhile." [PFAF]
Synonyms