Coincya monensis |
Coincya |
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star-mustard |
star-mustard |
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Habit | Annuals [biennials or perennials]; not scapose; glabrous or hispid. | |
Stems | usually erect, rarely prostrate, [unbranched] branched basally. |
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Leaves | basal and cauline; petiolate; basal rosulate, blade margins lobed, pinnatipartite to lyrate, or 1- or 2-pinnatisect, [entire or dentate]; cauline blade similar to basal, (base not auriculate). |
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Racemes | (corymbose), greatly elongated in fruit. |
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Flowers | sepals erect, connivent, obtuse [narrowly oblong], lateral pair usually saccate basally, (setulose proximal to apex); petals yellow (usually with dark brown, maroon, or purple veins), obovate, claw differentiated from blade, (apex obtuse); stamens tetradynamous; filaments not dilated basally, slender; anthers linear, (base sagittate); nectar glands: lateral glands lobed, median glands usually absent. |
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Fruiting pedicels | usually ascending to patent [reflexed], rarely erect, slender. |
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Fruits | siliques, dehiscent, sessile or subsessile, segments 2, linear, torulose, terete; (terminal segment 1–6-seeded, indehiscent, ensiform to cylindrical, linear, smooth); valves each 3(–5)-veined, glabrous; replum rounded; septum complete; ovules 4–100 per ovary; stigma capitate, 2-lobed. |
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Seeds | uniseriate, plump, not winged, subglobose [globose, oblong]; seed coat (reticulate), slightly mucilaginous when wetted; cotyledons conduplicate. |
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x | = 12. |
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Coincya monensis |
Coincya |
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Distribution |
MI; NC; PA; w Europe; Africa (Morocco) |
w Europe; nw Africa [Introduced in North America] |
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.) |
Species 6 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 430. | FNA vol. 7, p. 429. |
Parent taxa | ||
Subordinate taxa | ||
Synonyms | Sisymbrium monense | Brassicella, Hutera, Rhynchosinapis |
Name authority | (Linnaeus) Greuter & Burdet: Willdenowia 13: 87. (1983) | Porta & Rigo ex Rouy: Naturaliste, sér. 2, 13: 248. (1891) |
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