Carex leptopoda

Mackenzie in P. A. Rydberg

in P. A. Rydberg, Fl. Rocky Mts., 124, 1060. 1917.

IllustratedEndemic
Synonyms: Carex deweyana subsp. leptopoda (Mackenzie) Calder & Roy L. Taylor Carex deweyana var. leptopoda (Mackenzie) B. Boivin
Treatment appears in FNA Volume 23. Treatment on page 323. Mentioned on page 322, 324.

Plants loosely to densely cespitose. Culms 21–67 cm × 0.7–1.4 mm, smooth or papillose. Leaves: ligule of distal leaf (2.5–) 3.4–6.8 (–7.4) mm, 1.5–3 times as long as wide; blades 2.4–5.9 mm wide, widest blade 2.8–5.9 mm wide. Inflorescences (17–) 34–43 (–68) mm; proximal internode 4.1–16 (–40) mm; proximal bract (11–) 16–26 (–61) mm, awn (9–) 13–23 (–59) mm; spikes 5–7, usually gynecandrous; proximal spikes with 2 staminate and 11–23 pistillate flowers, 8–15 × 3.3–5.8 mm; terminal spikes usually with 2–4 staminate and 16–20 pistillate flowers, 9–12.7 × 4.2–5.7 mm. Pistillate scales with whitish to stramineous margins, 2.6–3.3 × 1.2–1.8 mm, body (2.3–) 2.7–3.8, apex acuminate to short-awned, awn to 0.7 mm. Staminate scales with whitish to stramineous margins, 1.9–2.8 × 1–1.3 mm. Anthers 1.8–1.9 mm. Perigynia ascending to erect, green to pale-brown, 0–3-veined abaxially, prominently to weakly 0–2-veined adaxially, ovate to narrowly ovate, 3.3–3.9 (–4.4) × 1.1–1.5 mm, 2.3–3 times as long as wide, apex abruptly contracted to gradually tapering; beak 0.9–1.5 (–1.7) mm, (0.28–) 0.3–0.38 times as long as perigynia, margins serrulate, apex entire or bidentulate, teeth to 0.3 mm, 0–0.08 times as long as perigynia. Stigmas 1.3–1.8 mm. Achenes 1.5–1.8 (–1.9) × 0.9–1.4 mm, 1.2–1.5 (–1.7) times as long as wide. 2n = 54.


Phenology: Fruiting spring–summer.
Habitat: Mesic to wet forests, forest edges, especially near streams
Elevation: 0–2500 m

Distribution

V23 570-distribution-map.jpg

B.C., Calif., Idaho, Mont., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number."-0.08timesaslongasperigynia" is not declared as a valid unit of measurement for this property.

... more about "Carex leptopoda"
0.18 cm1.8 mm <br />0.0018 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
1.2-1.5(-1.7) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
planoconvex;biconvex +
0.9mm;1.4mm +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
bidentulate +  and entire +
tapering;acuminate;short-awned +
Robert F. C. Naczi +
Mackenzie in P. A. Rydberg +
2.3 cm23 mm <br />0.023 m <br /> (5.9 cm59 mm <br />0.059 m <br />) +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
cuneate +  and rounded +
Deweyanae +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
v--shaped +  and flat +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.59 cm5.9 mm <br />0.0059 m <br />) +
2.7 +  and 3.8 +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
green;hyaline +
21 cm210 mm <br />0.21 m <br /> (67 cm670 mm <br />0.67 m <br />) +
papillose +  and smooth +
round +  and trigonous +
0.7mm;1.4mm +
B.C. +, Calif. +, Idaho +, Mont. +, Oreg. +  and Wash. +
0–2500 m +
pistillate +  and staminate +
hypogynous +  and subtending +
16 +  and 20 +
biconvex +  and trigonous +
Mesic to wet forests, forest edges, especially near streams +
4.3 cm43 mm <br />0.043 m <br /> (6.8 cm68 mm <br />0.068 m <br />) +
3.4 cm34 mm <br />0.034 m <br /> (4.3 cm43 mm <br />0.043 m <br />) +
sessile +, staminate +  and pistillate +
androgynous +  and gynecandrous +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
whitish +  and stramineous +
with (1-)3-6(-30) bristles and/or scales +
0-2-veined +  and 0-3-veined +
0.39 cm3.9 mm <br />0.0039 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
green +  and pale-brown +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.39 cm3.9 mm <br />0.0039 m <br />) +
ascending +  and erect +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
2.6 cm26 mm <br />0.026 m <br /> (6.1 cm61 mm <br />0.061 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0.41 cm4.1 mm <br />0.0041 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
in P. A. Rydberg, Fl. Rocky Mts., +
adventitious +
staminate +  and pistillate +
whitish +  and castaneous +
basal +  and proximal +
2-keeled +
0.1 cm1 mm <br />0.001 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
cylindric +
Illustrated +  and Endemic +
gynecandrous +
1 +  and 3 +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
deciduous +
2-3(-4)-fid +
enlarged +
Carex deweyana subsp. leptopoda +  and Carex deweyana var. leptopoda +
Carex leptopoda +
Carex sect. Deweyanae +
species +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.57 cm5.7 mm <br />0.0057 m <br />) +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
plant +  and cespitose +
2.8mm +  and 5.9mm +