Calamovilfa arcuata

K.E. Rogers
Common names: Cumberland sandreed
Endemic
Treatment appears in FNA Volume 25. Treatment on page 142.

Rhizomes short, covered with the persistent bases of the foliage leaves. Culms to 1.5+ m. Sheaths to 22 cm; ligules to 0.7 mm; blades to 85 cm long, 1.5-6.5 mm wide. Panicles 15-45 cm long, 8-40 cm wide, open; branches to 22 cm, ascending to spreading. Spikelets 6-7.4 mm. Glumes usually arcuate, acute to acuminate; lower glumes 2.7-4.1 mm; upper glumes 4.2-5.4 mm; callus hairs 1/3 – 1/2 as long as the lemmas; lemmas 5.5-7 mm, arcuate, pubescent, attenuate; paleas 5.4-6.2 mm, pubescent; anthers 2.8-3.2 mm. 2n = unknown.

Distribution

Tenn., Ky., Ark., Okla., Ala.

Discussion

Calamovilfa arcuata is known only from a few scattered locations in the south central United States. It grows along streams and rivers.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Calamovilfa arcuata"
0.28 cm2.8 mm <br />0.0028 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
John W. Thieret +
K.E. Rogers +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
persistent +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
0 cm0 mm <br />0 m <br /> (85 cm850 mm <br />0.85 m <br />) +
pubescent +  and glabrous +
tapering +  and elongate +
1.5mm;6.5mm +
not disarticulating +
ascending;spreading +
not spikelike +
1/3 +  and 1/2 +
triangular +  and dome--shaped +
sometimes longer +
membranous +
Cumberland sandreed +
ascending +  and erect +
0 cm0 mm <br />0 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Tenn. +, Ky. +, Ark. +, Okla. +  and Ala. +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
bisexual +  and fertile +
round +  and compressed +
reduced +
shorter or longer +
subtending +
acute +  and acuminate +
subequal +  and unequal +
1/4 +  and 7/8 +
uncinate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
attenuate +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sometimes longer +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
inconspicuous +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
concealed +  and prominent +
2 +  and 1 +
0.54 cm5.4 mm <br />0.0054 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
15cm +  and 45cm +
8 cm80 mm <br />0.08 m <br /> (40 cm400 mm <br />0.4 m <br />) +
dry +  and fleshy +
spikelike +
not prolonged +
0 cm0 mm <br />0 m <br /> (22 cm220 mm <br />0.22 m <br />) +
1 +  and 60 +
compressed +
0.6 cm6 mm <br />0.006 m <br /> (0.74 cm7.4 mm <br />0.0074 m <br />) +
1 (?) +  and 3 (?) +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Calamovilfa arcuata +
Calamovilfa +
species +
membranous +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.54 cm5.4 mm <br />0.0054 m <br />) +
7 +  and 13 +
aquatic +  and terrestrial +