Poa kelloggii

Vasey
Common names: Kellogg's bluegrass
Endemic
Treatment appears in FNA Volume 24. Treatment on page 514.
Please click on the illustration for a higher resolution version.
Illustrator: Sandy Long

Copyright: Utah State University

Plants perennial; rhizomatous, loosely tufted, culms solitary to several. Basal branching mainly extravaginal. Culms 28-85 cm, erect or the bases decumbent, terete or weakly compressed; nodes terete, 1-2 exserted. Sheaths closed for about 1/15 – 1/5 their length, sometimes fused for a longer distance by a narrow hyaline membrane, terete, bases of basal sheaths glabrous, distal sheath lengths 0.8-1.5 times blade lengths; ligules 0.5-3 mm, scabrous, usually lacerate; blades scarcely reduced in length distally, 2-5 mm wide, flat, lax, apices narrowly prow-shaped, flag leaf-blades 5-15 cm long. Panicles 10-20 cm, erect, pyramidal, open, sparse, with 25-70 spikelets; nodes with 1-3 (5) branches; branches 5-15 cm, ascending, straight, spreading to eventually reflexed, angled, angles mostly moderately to densely scabrous, with 5-15 spikelets. Spikelets 4.5-6 mm, lengths 3.5 times widths, laterally compressed; florets 2-3; rachilla internodes, at least some, longer than 1 mm, smooth, glabrous. Glumes distinctly keeled; lower glumes 1-3-veined; upper glumes shorter than or subequal to the lowest lemmas; calluses webbed, hairs over 1/2 the lemma length; lemmas 3.5-5 mm, narrowly lanceolate, distinctly keeled, smooth, glabrous throughout, lateral-veins moderately prominent, apices acute to acuminate; paleas smooth to scabrous over the keels; anthers about 2 mm. 2n = 56.

Discussion

Poa kelloggii grows in rich coastal forests, especially redwood forests, in California. It is not common. Reports from Oregon and British Columbia are based on misidentifications of P. laxiflora (p. 538) and P. howellii (p. 534), respectively.

Selected References

None.

Lower Taxa

None.

"reduced" is not a number."decumbent" is not a number.

... more about "Poa kelloggii"
membranous +  and scarious +
puberulent +, hispidulous +, hairy +  and glabrous +
2.6 cm26 mm <br />0.026 m <br /> (?) +
2 cm20 mm <br />0.02 m <br /> (?) +
scarious-hyaline +
acute +  and acuminate +
Robert J. Soreng +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
keeled +  and rounded +
strigose +  and glabrous +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
compressed +  and terete +
swelling +
not evident +
glabrous +, scabrous +  and smooth +
involute +, folded +  and flat +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spreading;eventually reflexed +
hispidulous +, glabrous +, smooth or +  and sparsely densely scabrous +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
compressed +  and terete +
Kellogg's bluegrass +
extravaginal +  and basal +
compressed +  and terete +
28 cm280 mm <br />0.28 m <br /> (85 cm850 mm <br />0.85 m <br />) +
not woody +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
2 +  and 3 +
compressed +
reduced +
1-3(5)-veined +
shorter or longer +
subtending +
unequal +
distributed +
uncinate +
0.1 cm1 mm <br />0.001 m <br /> (?) +
0 +  and 1/6 +
Oval (?) +  and Round (?) +
milky white +  and slightly greenish +
5(7-11)-veined +
keeled +  and lanceolate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
membranous +
erose +  and entire +
white +  and milky white or hyaline +
ciliolate +  and smooth +
lacerate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
inconspicuous +
lobed +  and lanceolate +
white +  and clear +
glabrous +, scabrous +  and smooth +
concealed +  and prominent +
1 +  and 2 +
2 +  and 1 +
well-developed +
smooth to scabrous +
2-keeled +
subequal +
pyramidal +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
dry +  and fleshy +
5 +  and 15 +
compressed +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Poa kelloggii +
Poa sect. Sylvestres +
species +
membranous +
parallel +  and converging +
aquatic +  and terrestrial +