Erysimum teretifolium

Eastwood

Leafl. W. Bot. 2: 144. 1938.

EndemicConservation concern
Basionym: Erysimum filifolium Eastwood Leafl. W. Bot. 2: 73. 1838,
Treatment appears in FNA Volume 7. Treatment on page 545. Mentioned on page 535.

Biennials or perennials; (short-lived, caudex often woody). Trichomes of leaves 2-rayed, mixed with 3-rayed ones. Stems erect, unbranched, (1.4–) 2.5–8 (–10) dm. Basal leaves: blade filiform to narrowly linear, 5–17 cm × 0.4–3 mm, (somewhat revolute, appearing terete), base attenuate, margins denticulate, apex subacuminate. Cauline leaves sessile; blade margins entire or remotely denticulate. Racemes considerably elongated in fruit. Fruiting pedicels divaricate to ascending, slender, narrower than fruit, 5–14 mm. Flowers: sepals oblong to linear-oblong, 7–11 mm, lateral pair saccate basally; petals orange-yellow to yellow, broadly obovate to suborbicular, 15–20 (–25) × 5–10 mm, claw 6–13 mm, apex rounded; median filaments 7–14 mm; anthers linear, 2.3–3.5 mm. Fruits widely spreading to ascending, narrowly linear, curved or slightly twisted, somewhat torulose, (4–) 7–12 (–15) cm × 1.2–2.2 (–2.5) mm, slightly latiseptate, not striped; valves with prominent midvein, pubescent outside, trichomes 2 and 3 (or 4) -rayed, glabrous inside; ovules 40–72 per ovary; style cylindrical, slender, 0.5–2 (–2.5) mm, sparsely pubescent; stigma subentire to slightly 2-lobed, lobes as long as wide. Seeds ovoid, 1.5–2.3 (–2.7) × 0.9–1.5 mm; wing appendage-like, distal. 2n = 36.


Phenology: Flowering Feb–May.
Habitat: Sandy areas bordering sage scrub or chaparral, sand deposits derived from sandstone
Elevation: 100-400 m

Discussion

Of conservation concern.

Erysimum teretifolium is a highly endangered species known only from Santa Cruz 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 teretifolium"
linear +  and oblong +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
rounded +  and subacuminate +
Ihsan A. Al-Shehbaz +
Eastwood +
not +  and rosulate +
attenuate +
Erysimum filifolium +
appendaged +  and unappendaged +
not auriculate +
5 cm50 mm <br />0.05 m <br /> (17 cm170 mm <br />0.17 m <br />) +
denticulate +  and entire +
filiform;narrowly linear +
much smaller +  and reduced +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
distinct +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
differentiated +
emarginate +  and entire +
100-400 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
tetradynamous +
latiseptate +  and twisted +
12 cm120 mm <br />0.12 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not striped +
7 cm70 mm <br />0.07 m <br /> (12 cm120 mm <br />0.12 m <br />) +
widely spreading +  and ascending +
torulose +
slender +
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
latiseptate +  and unsegmented +
angustiseptate +, terete +  and 4-angled +
Sandy areas bordering sage scrub or chaparral, sand deposits derived from sandstone +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
denticulate +
0.7 cm7 mm <br />0.007 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
orange-yellow +  and yellow +
15mm;20mm +
rudimentary +
broadly obovate +  and suborbicular +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering Feb–May. +
trinucleate +  and 3(-11)-colpate +
Leafl. W. Bot. +
spreading +, horizontal +, reflexed +, ascending +  and erect +
stout +  and slender +
mucilaginous +
not winged +, margined +  and winged +
uniseriate +  and biseriate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +  and caducous +
distinct +
oblong +  and linear-oblong +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
Endemic +  and Conservation concern +
tetradynamous +
procumbent +  and decumbent +
subentire +  and slightly 2-lobed +
subsessile +, sessile +  and petiolate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
persistent +
distinct +
cylindrical +
slender +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Cheiranthus +, Cheirinia +, Cuspidaria +  and Syrenia +
Erysimum teretifolium +
Erysimum +
species +
scale-like +  and forked +
coiled +, 1-7-veined +  and veined +
anastomosing +
perennial +  and biennial +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
appendage-like +