Erysimum franciscanum

Rossbach

Aliso 4: 118. 1958.

IllustratedEndemic
Synonyms: Erysimum franciscanum var. crassifolium Rossbach
Treatment appears in FNA Volume 7. Treatment on page 540. Mentioned on page 535.

Perennials or subshrubs. Trichomes of leaves 2-rayed mixed with 3 (–5) -rayed ones. Stems erect, often branched distally, (woody at base), 0.6–5 (–6) dm. Basal leaves (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) petiolate; blade margins usually dentate, rarely denticulate. Racemes considerably elongated in fruit. Fruiting pedicels divaricate to ascending, stout, narrower than fruit, 5–17 (–22) mm. Flowers: 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. Fruits 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 oblong, 2–3.5 (–4) × 1.2–2.2 (–2.5) mm; wing distal, present on 1 or both margins. 2n = 36.


Phenology: Flowering Jan–Apr.
Habitat: Serpentine outcrops, coastal scrub or sand dunes, granitic hillsides
Elevation: 0-500 m

Discussion

Erysimum franciscanum is known from Marin, San Francisco, San Mateo, and Santa Cruz counties. Historical records indicate that it grew previously in Sonoma County.

Selected References

None.

Lower Taxa

None.

"wide" is not a number."elongated" is not a number."narrower" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Erysimum franciscanum"
linear +  and oblong +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rounded +  and acute +
Ihsan A. Al-Shehbaz +
Rossbach +
not +  and rosulate +
attenuate +
appendaged +  and unappendaged +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
not auriculate +
2.5 cm25 mm <br />0.025 m <br /> (17 cm170 mm <br />0.17 m <br />) +
oblanceolate;oblanceolate-linear +
much smaller +  and reduced +
0.3 cm3 mm <br />0.003 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
distinct +
0.9 cm9 mm <br />0.009 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
differentiated +
emarginate +  and entire +
0-500 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
tetradynamous +
11 cm110 mm <br />0.11 m <br /> (14 cm140 mm <br />0.14 m <br />) +
1.7 cm17 mm <br />0.017 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
not striped +
curved +, straight +  and linear +
4 cm40 mm <br />0.04 m <br /> (11 cm110 mm <br />0.11 m <br />) +
spreading +  and ascending +
torulose +
0.5 cm5 mm <br />0.005 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
latiseptate +  and unsegmented +
angustiseptate +, terete +  and 4-angled +
Serpentine outcrops, coastal scrub or sand dunes, granitic hillsides +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
dentate +  and sinuate-dentate +
repand;dentate-sinuate;repand;dentate-sinuate;denticulate;dentate +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
yellow +  and cream +
14mm;29mm +
rudimentary +
obovate +  and suborbicular +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering Jan–Apr. +
trinucleate +  and 3(-11)-colpate +
spreading +, horizontal +, reflexed +, ascending +  and erect +
stout +  and slender +
mucilaginous +
not winged +, margined +  and winged +
uniseriate +  and biseriate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +  and caducous +
distinct +
oblong +  and linear-oblong +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
Illustrated +  and Endemic +
tetradynamous +
procumbent +  and decumbent +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
cylindrical +
slender +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Erysimum franciscanum var. crassifolium +
Erysimum franciscanum +
Erysimum +
species +
scale-like +  and forked +
coiled +, 1-7-veined +  and veined +
anastomosing +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +