Carex serpenticola

Zika

Madroño 45: 261, figs. 1, 2, 3S. 1998.

Treatment appears in FNA Volume 23. Treatment on page 544. Mentioned on page 532, 533, 534, 545.

Plants loosely cespitose or with solitary stems; rhizomes horizontal, purple to black, 25–75 (–100) mm, slender. Culms 8–38 cm; bases (remnants of old leaves) weakly to strongly fibrous. Leaf-blades green, 1.5–3.5 (–5) mm wide, herbaceous, smooth to scabrous abaxially, smooth to scabrous adaxially. Inflorescences usually with either staminate or pistillate spikes, occasionally with both; peduncles of staminate spikes short; proximal nonbasal bracts leaflike, dark purple to black at base, shorter than inflorescences. Spikes: proximal pistillate spikes 1–4 (basal spikes 0–1); cauline spikes overlapping or somewhat separted, with 4–9 perigynia; staminate spikes 13–24 × (1.4–) 2–4.1 mm. Scales: pistillate scales dark purple to black, with narrow white margins, lanceolate, 3.8–4.6 × 1.3–1.8 mm, apex acuminate; staminate scales oblanceolate, 4.6–5.6 × 1.1–1.6 mm, apex acute; proximal staminate scales with narrow white margins 0.1–0.2 mm wide. Anthers 2.1–4 mm. Perigynia green, occasionally dark purple in age, veinless or 5-veined near base, obovoid, 3.1–3.6 × 1.5–1.8 mm; beak slightly bent, dark purple, 0.5–1 mm, weakly ciliate-serrulate, apical teeth 0.2 mm. Stigmas 3. Achenes pale to medium brown, globose, round in cross-section, 1.9–2.2 × 1.4–1.8 mm.


Phenology: Fruiting mid Apr–mid Jun.
Habitat: Open or partly shaded, vernally moist to wet meadows, riparian woodlands, savannas, successional scrublands, wetland margins, serpentine soils derived from ultramafic bedrock
Elevation: 60–1200 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Carex serpenticola"
pale +  and medium brown +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
round;globose +
1.4mm;1.8mm +
0.21 cm2.1 mm <br />0.0021 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
beaked +, awned +  and cuspidate +
glabrous +  and pubescent +
0.2 cm2 mm <br />0.002 m <br /> (?) +
William J. Crins +  and Jeff H. Rettig +
shortened +
rounded +  and tapering +
ciliate-serrulate +
straight +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
v--shaped +
2mm;4.5mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
somewhat +  and overlapping +
brown +  and red +
round +  and trigonous +
8 cm80 mm <br />0.08 m <br /> (38 cm380 mm <br />0.38 m <br />) +
Calif. +  and Oreg. +
60–1200 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Open or partly shaded, vernally moist to wet meadows, riparian woodlands, savannas, successional scrublands, wetland margins, serpentine soils derived from ultramafic bedrock +
prophyllate +, pedunculate +, staminate +, , +  and pistillate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.1mm +  and 0.2mm +
with (1-)3-6(-30) bristles and/or scales +
5-veined +  and veinless +
dark purple +  and green +
0.31 cm3.1 mm <br />0.0031 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Fruiting mid Apr–mid Jun. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
scale-like +  and filiform +
7.5 cm75 mm <br />0.075 m <br /> (10 cm100 mm <br />0.1 m <br />) +
purple +  and black +
2.5 cm25 mm <br />0.025 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
adventitious +
staminate +  and pistillate +
dark purple +  and black +
0.46 cm4.6 mm <br />0.0046 m <br /> (0.56 cm5.6 mm <br />0.0056 m <br />) +
basal +  and proximal +
oblanceolate;lanceolate +
1.1mm;1.6mm +
cylindric +
staminate +  and pistillate +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex sect. Montanae +
Carex serpenticola +
Carex sect. Acrocystis +
species +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
stoloniferous +  and rhizomatous +
plant +, with solitary stems +  and cespitose +