Carex deflexa var. boottii

L. H. Bailey

Mem. Torrey Bot. Club 1: 43. 1889.

Common names: Carex de Boott
IllustratedEndemic
Synonyms: Carex brevipes W. Boott ex Mackenzie Carex globosa var. brevipes W. Boott ex Mackenzie Carex rossii var. brevipes (W. Boott ex Mackenzie) Kükenthal
Treatment appears in FNA Volume 23. Treatment on page 536. Mentioned on page 535.

Culms often strongly scabrous distally. staminate spikes 6.3–11.3 × 1–2.7 mm.


Phenology: Fruiting early Jun–mid Aug.
Habitat: Dry to moist, sandy, gravelly, or rocky alpine meadows, open mixed and coniferous forests
Elevation: 1300–3400 m

Distribution

V23 1005-distribution-map.jpg

Alta., B.C., Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.

Discussion

Carex defexa var. boottii is sometimes included in C. rossii. The varieties are said to differ in the degree of spreading of the rhizomes; var. boottii is more cespitose in habit and has stouter rootstocks than var. deflexa. That character varies considerably within each variety, and may be dependent on the compaction and particle size of the soil in which a plant is growing. These taxa clearly form a complex that requires further study.

The name Carex brevipes was first proposed by W. Boott (in S. Watson 1876–1880, vol 2, p. 246) but then withdrawn (p. 485), so was not validly published by him. Subsequent authors used the name, attributing it to W. Boott. It was validly published at species rank by K. K. Mackenzie (1931–1935) and at varietal rank by L. H. Bailey.

Selected References

None.

Lower Taxa

None.

0.13 cm1.3 mm <br />0.0013 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
trigonous;obovoid +
1mm;1.4mm +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
beaked +, awned +  and cuspidate +
glabrous +  and pubescent +
reddish-brown tinge +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
William J. Crins +  and Jeff H. Rettig +
L. H. Bailey +
shortened +
rounded +  and tapering +
straight +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.23 cm2.3 mm <br />0.0023 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 +
separated +  and overlapping +
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Carex de Boott +
brown +  and red +
arching +  and spreading +
round +  and trigonous +
5 cm50 mm <br />0.05 m <br /> (31 cm310 mm <br />0.31 m <br />) +
Alta. +, B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1300–3400 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Dry to moist, sandy, gravelly, or rocky alpine meadows, open mixed and coniferous forests +
prophyllate +, pedunculate +, staminate +, , +  and pistillate +
shorter to longer +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
narrow to broad +
with (1-)3-6(-30) bristles and/or scales +
yellowish green +  and grayish green +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
Fruiting early Jun–mid Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
scale-like +  and filiform +
exceeding inflorescences +  and equaling +
Mem. Torrey Bot. Club +
purplish brown +  and reddish-brown +
spreading +  and erect +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
adventitious +
staminate +  and pistillate +
pale +  and dark reddish-brown +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
basal +  and proximal +
ovate;ovate +
1mm;1.9mm +
cylindric +
Illustrated +  and Endemic +
0.63 cm6.3 mm <br />0.0063 m <br /> (1.13 cm11.3 mm <br />0.0113 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex brevipes +, Carex globosa var. brevipes +  and Carex rossii var. brevipes +
Carex deflexa var. boottii +
Carex deflexa +
variety +
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 +  and cespitose +