Neviusia cliftonii

Shevock

Novon 2: 286, fig. 1. 1992.

Common names: Shasta snow-wreath
Conservation concernEndemic
Treatment appears in FNA Volume 9. Treatment on page 389. Mentioned on page 388.

Leaves: petiole 4–10 mm; blade ovate to cordate, 2–9 × 1.5–7 cm, base obtuse to truncate, margins shallowly lobed and coarsely serrate, apex acuminate to acute, surfaces strigose. Pedicels 1–3 cm. Flowers: sepals obovate, 3.5–6 × 2.5–4 mm; petals usually 0, rarely 1–2; stamens 50+; carpels 3–6, styles 3 mm.


Phenology: Flowering late spring; fruiting late spring–early summer.
Habitat: Limestone substrates, shaded canyons along streams
Elevation: 300–500 m

Discussion

Of conservation concern.

Neviusia cliftonii, known only from the Lake Shasta region in northern California, has been recommended for federal listing under the Endangered Species Act. The discovery of fossil leaves of the genus in British Columbia (S. M. Moore et al. 2002) substantiates the hypothesis that the disjunct populations are relicts from a former more widespread distribution (J. R. Shevock et al. 1992). Members of the California Native Plant Society currently are cultivating N. cliftonii (B. Ertter and J. R. Shevock 1993).

Selected References

None.

Lower Taxa

None.
... more about "Neviusia cliftonii"
subsericeous +  and strigose +
sparsely strigose +  and subsericeous +
acuminate;acute +
Alice L. Heikens +
Shevock +
reddish-brown +  and grayish +
exfoliating +
compound +  and simple +
opposite +  and alternate +
obtuse +  and truncate +
bright green +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
ovate +  and cordate +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
membranous +
1.5 cm15 mm <br />0.015 m <br /> (?) +  and 7 cm70 mm <br />0.07 m <br /> (?) +
free +  and distinct +
Shasta snow-wreath +
not +  and aggregated +
300–500 m +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
odorless +
unisexual +  and bisexual +
not +  and aggregated +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not +  and aggregated +
not +  and aggregated +
Limestone substrates, shaded canyons along streams +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
glabrate +  and glabrous +
campanulate +  and saucer--shaped +
crassinucellate +
opposite +  and alternate +
deciduous +  and winter-persistent +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and marginal +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0 (?) +  and 4 (?) +
free +  and distinct +
1 +  and 2 +
oblanceolate +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering late spring +  and fruiting late spring–early summer. +
adnate +, free +, connate +  and distinct +
not arillate +
persistent +
free +  and distinct +
spreading +  and reflexed +
obovate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
tubelike +
Conservation concern +  and Endemic +
free +  and distinct +
branched +  and simple +
1 +  and 6 +
slender +
linear;awl-shaped +
persistent +
distinct +
subapical +
elongate +
3 cm30 mm <br />0.03 m <br /> (?) +
Neviusia cliftonii +
Neviusia +
species +
inconspicuous +
17 +, 15 +, 9 +  and 8 +