Calamagrostis bolanderi

Thurb.
Common names: Bolander's reedgrass
Endemic
Treatment appears in FNA Volume 24. Treatment on page 719.

Plants sometimes with sterile culms; mostly cespitose, with rhizomes to 3 cm long, 1-2 mm thick. Culms 50-150 cm, un¬branched, smooth or slightly scabrous beneath the panicles; nodes 2-4. Leaves distributed along the culms; sheaths and collars smooth or scabrous, glabrous; ligules (2) 3 (5) mm, more or less obtuse, entire to lacerate; blades (5) 15-26 (30) cm long, (2) 3-7 (10) mm wide, flat or involute, smooth or slightly scabrous, glabrous or sparsely hairy. Panicles (4) 10-16 (25) cm long, (2.5) 4-5.5 (6) cm wide, open, erect to nodding, pale green to bronze or purple; branches (4) 5.5-8 (9) cm, sparsely scabrous, spreading to ascending, spikelets confined to the distal 1/4-1/2. Spikelets 3-4 (5) mm; rachilla prolongations 0.5-1 mm, hairs 1-1.5 mm. Glumes rounded to slightly keeled, keels scabrous distally, lateral-veins obscure, apices acute; callus hairs 0.5-1 mm, 0.2-0.4 times as long as the lemmas, appearing sparse primarily because of their shortness; lemmas 2.5-3 mm, 0-1 (2) mm shorter than the glumes; awns 3.5-5 (6) mm, attached to the lower 1/10 – 1/5 of the lemmas, usually exserted, strongly bent; anthers (1.5) 2-3 mm. 2n = 56.

Discussion

Calamagrostis bolanderi grows in marshes, swamps, bogs, fens, seeps, moist meadows, open and closed coniferous and broadleaf forests, prairies, and coastal scrub, from sea level to 500 m. It is known only from sites near the coast in Humboldt, Mendocino, and Sonoma counties, California. It differs from C. breweri and C. muiriana in having leaves evenly distributed along the culms.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Calamagrostis bolanderi"
membranous +  and scarious +
1.5 cm15 mm <br />0.015 m <br /> (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Kendrick L. Marr +, Richard J. Hebda +  and Craig W. Greenef +
Thurb. +
1 (?) +  and 3 (?) +
6 cm60 mm <br />0.06 m <br /> (?) +
straight +
attached +
exserted +  and lower +
indistinct +
1/10 +  and 1/5 +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
15 cm150 mm <br />0.15 m <br /> (26 cm260 mm <br />0.26 m <br />) +
not evident +
hairy +, glabrous +, scabrous +  and smooth +
involute +  and flat +
3mm;7mm +
4 cm40 mm <br />0.04 m <br /> (?) +
spreading;ascending +
spikelike +
0.2-0.4 times as long as the lemmas +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
glabrous +, scabrous +  and smooth +
Bolander's reedgrass +
ascending +  and erect +
50 cm500 mm <br />0.5 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Calif. +  and Oreg. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +  and bisexual +
compressed +
reduced +
subtending +
rounded +  and slightly keeled +
subequal +
membranous +
sparse +  and abundant +
uncinate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
distributed +
lanceolate +  and ovate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
entire +  and lacerate +
membranous +
inconspicuous +
lanceolate +
concealed +  and prominent +
2 +  and 4 +
2 +  and 1 +
hairy +  and glabrous +
2-keeled +
pale green +  and bronze or purple +
10cm +  and 16cm +
erect +  and nodding +
spikelike +
4 cm40 mm <br />0.04 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
dry +  and fleshy +
glabrous +, scabrous +  and smooth +
1/4 +  and 1/2 +
compressed +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Calamagrostis bolanderi +
Calamagrostis +
species +
membranous +
parallel +  and converging +
obscure +  and prominent +
plant +  and cespitose +
aquatic +  and terrestrial +