Flora of North America species comparison

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Coincya monensis

Coincya monensis subsp. recurvata

star-mustard
Photo is of parent taxon

star-mustard, tall wallflower-cabbage, wallflower-cabbage
Stems

(0.8–)1–10 dm, usually sparsely to densely hispid basally, rarely glabrous, trichomes 0.5–3.6 mm.
Basal leaves

long-petiolate;

blade (3–)5–20 cm × 25–100 mm, lobes 3–9(–10) each side, surfaces sparsely to densely hispid, rarely coriaceous or glaucous, trichomes patent, rarely appressed.
Cauline leaves

blade similar to basal, (lobes fewer, narrower than basal).
Racemes

2–8(–15)-flowered, open at one time.
Flowers

sepals: median pair apex cucullate, (setulose below apex), lateral pair broader, saccate basally;

petals 12.5–22(–26) × 2.5–7(–9) mm, claw nearly as long as sepal.
Fruits

usually straight, rarely curved, (1–)3–9 cm;

proximal segment (15–)20–75(–90)-seeded, (8–)25–75 × 1.5–3 mm, apex obtuse;

terminal segment (0 or)1–5-seeded, (5–)7–23(–34) × 1.5–3 mm;

style relatively short.
Seeds

black to brown, subglobose, 0.8–1.6 × 0.8–1.4 mm.
2n

= 24, 48.

Coincya monensis

Coincya monensis subsp. recurvata
Phenology Flowering May–Aug.
Habitat Fields, roadsides, mountain road cuts, cliff ledges
Distribution
from FNA
MI; NC; PA; w Europe; Africa (Morocco)
[BONAP county map]
from FNA
MI; NC; PA; w Europe; nw Africa [Introduced in North America]
[BONAP county map]
Discussion

Subspecies 5 (1 in the flora).

Coincya monensis is a variable species, within which, in spite of lack of clear discontinuities in variation patterns, E. A. Leadlay and V. H. Heywood (1990) recognized five subspecies and divided subsp. recurvata into four varieties, not recognized here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies recurvata was first recorded from North America in 1880 on ballast in New Jersey (R. C. Rollins 1961, 1981, 1993; I. A. Al-Shehbaz 1985); it was first reported from North Carolina (as Brassica erucastrum) in 1958 from Yancey County and in 1968 from Jackson County (H. E. Ahles and A. E. Radford 1964; Al-Shehbaz). From Pennsylvania, subsp. recurvata was reported from Luzerne County in 1964 and from Bradford County in 1983.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 7, p. 430. FNA vol. 7, p. 430.
Parent taxa Brassicaceae > tribe Brassiceae > Coincya Brassicaceae > tribe Brassiceae > Coincya > Coincya monensis
Subordinate taxa
C. monensis subsp. recurvata
Synonyms Sisymbrium monense Sinapis recurvata, Brassica cheiranthos, Hutera cheiranthos, Rhynchosinapis cheiranthos
Name authority (Linnaeus) Greuter & Burdet: Willdenowia 13: 87. (1983) (Allioni) Leadlay: Bot. J. Linn. Soc. 102: 370. (1990)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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