Erysimum inconspicuum |
Erysimum franciscanum |
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prairie rocket, shy wallflower, small wallflower, small-flower rocket, small-flower rocket rocket, smallflower wallflower |
Franciscan wallflower, San Francisco wallflower |
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Habit | Biennials or perennials; (short-lived, caudex thickened, usually simple, rarely branched). | Perennials or subshrubs. |
Stems | erect, unbranched or branched distally, 1.5–7 dm. |
erect, often branched distally, (woody at base), 0.6–5(–6) dm. |
Basal leaves | blade linear to linear-oblanceolate, 1.5–6(–8) cm × 2–8 mm, base attenuate, margins entire or dentate, apex acute. |
(often withered in suffrutescent plants); blade oblanceolate to oblanceolate-linear, 2.5–17 cm × (2–)3–16(–20) mm, base attenuate, margins sinuate-dentate or dentate, apex acute. |
Cauline leaves | (distal) sessile; blade margins entire or denticulate. |
(distal) petiolate; blade margins usually dentate, rarely denticulate. |
Racemes | elongated or not in fruit. |
considerably elongated in fruit. |
Flowers | sepals oblong to linear-oblong, 4–6 mm, lateral pair slightly saccate basally; petals yellow, oblanceolate, 6–9(–11) × 1–2 mm, claw 5–7 mm, apex rounded; median filaments 5–7 mm; anthers narrowly oblong to linear, 1–2 mm. |
sepals oblong to linear-oblong, 8–12(–15) mm, lateral pair saccate basally; petals yellow to cream, obovate to suborbicular, 14–29 × 5–12(–15) mm, claw 9–17 mm, apex rounded; median filaments 9–15 mm; anthers linear, 2.5–4 mm. |
Fruiting pedicels | divaricate-ascending to ascending, stout, slightly narrower than fruit, 4–9(–15) mm. |
divaricate to ascending, stout, narrower than fruit, 5–17(–22) mm. |
Fruits | ascending to divaricate-ascending, (not appressed to rachis), narrowly linear, straight, not torulose, 3–5.8(–7) cm × 1–1.5(–1.8) mm, slightly 4-angled or terete, not striped; valves with somewhat prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside; ovules 36–66 per ovary; style cylindrical, stout, 0.7–3 mm, moderately to sparsely pubescent; stigma strongly 2-lobed, lobes as long as wide. |
usually ascending, rarely spreading, narrowly linear, straight or curved upward, not or, rarely, slightly torulose, (3.8–)4–11(–14) cm × 2–4 mm, latiseptate, not striped; valves with somewhat prominent midvein, pubescent outside, trichomes (2 or) 3 (or 4)-rayed, glabrous inside; ovules 32–64 per ovary; style cylindrical, slender, 0.5–3.5 mm, sparsely pubescent; stigma 2-lobed, lobes as long as wide. |
Seeds | ovoid, 1.2–1.7 × 0.8–1 mm; not winged or wing apiculate. |
oblong, 2–3.5(–4) × 1.2–2.2(–2.5) mm; wing distal, present on 1 or both margins. |
Trichomes | of leaves 2- or 3-rayed. |
of leaves 2-rayed mixed with 3(–5)-rayed ones. |
2n | = 81. |
= 36. |
Erysimum inconspicuum |
Erysimum franciscanum |
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Phenology | Flowering Apr–Aug. | Flowering Jan–Apr. |
Habitat | Calcareous talus and cliffs, roadsides, railroad embankments, abandoned fields, hillsides, alkaline ground, bluffs, crevices and ledges, gravel, prairies, rocky pastures, among brush, waste sites | Serpentine outcrops, coastal scrub or sand dunes, granitic hillsides |
Elevation | 100-2700 m (300-8900 ft) | 0-500 m (0-1600 ft) |
Distribution |
AK; AR; CO; ID; IL; IN; KS; ME; MI; MN; MO; MT; ND; NH; NV; NY; OH; OK; OR; SD; UT; WI; WY; AB; BC; MB; NS; ON; QC; SK; YT
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CA
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Discussion | Erysimum inconspicuum is known in Yukon from Raup & Correll 11255 (A), which was collected 7 miles east of Little Atlin Lake, and Malte s.n. (GH), which was collected from Dawson on 10 August 1916. Most of the other collections from Yukon identified as E. inconspicuum belong to E. coarctatum. The record from Quebec is based on Cayouette J80-8 (GH), from Cté de Charlevoix, and Victorin, Germain, & Meilleur 43128 (GH), from Du Lac-Saint-Jean. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erysimum franciscanum is known from Marin, San Francisco, San Mateo, and Santa Cruz counties. Historical records indicate that it grew previously in Sonoma County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 541. | FNA vol. 7, p. 540. |
Parent taxa | Brassicaceae > tribe Erysimeae > Erysimum | Brassicaceae > tribe Erysimeae > Erysimum |
Sibling taxa | ||
Synonyms | E. asperum var. inconspicuum, Cheiranthus inconspicuus, Cheiranthus syrticola, Cheirinia inconspicua, Cheirinia parviflora, Cheirinia syrticola, E. asperum var. parviflorum, E. inconspicuum var. syrticola, E. syrticola | E. franciscanum var. crassifolium |
Name authority | (S. Watson) MacMillan: Metasp. Minnesota Valley, 268. (1892) | Rossbach: Aliso 4: 118. (1958) |
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