Minuartia nuttallii var. gracilis

(B. L. Robinson) Rabeler & R. L. Hartman

Sida 21: 753. 2004.

Common names: Brittle sandwort
Endemic
Basionym: Arenaria nuttallii var. gracilis B. L. Robinson Proc. Amer. Acad. Arts 29: 304. 1894
Synonyms: Arenaria nuttallii subsp. gracilis (B. L. Robinson) Maguire Minuartia nuttallii subsp. gracilis (B. L. Robinson) McNeill
Treatment appears in FNA Volume 5. Treatment on page 130.

Leaves tightly appressed to occasionally arcuate-spreading; blade 5–7 mm, apex spinescent. Flowers: sepals 1 (–3) -veined, lanceolate (herbaceous portion lanceolate to often narrowly so), 4–5.7 mm, apex spinescent; petals 0.7–1 times as long as sepals.


Phenology: Flowering spring–summer.
Habitat: Loose talus, sandy flats, barren rock
Elevation: 2600-3800 m

Discussion

Selected References

None.

Lower Taxa

None.
green +  and purple +
stipitate-glandular +
rounded;acute;acuminate +
Richard K. Rabeler +, Ronald L. Hartman +  and Frederick H. Utech +
(B. L. Robinson) Rabeler & R. L. Hartman +
Arenaria nuttallii var. gracilis +
straight +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
broadly lanceolate +  and linear +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
lanceolate +  and subulate +
reduced +
5 cm50 mm <br />0.05 m <br /> (?) +
Brittle sandwort +
many-branched +
axillary +  and terminal +
dish--shaped +
expanded +
Calif. +, Nev. +  and Oreg. +
2600-3800 m +
straight +  and curved +
central +  and peripheral +
axillary +  and terminal +
inconspicuous +
unisexual +  and bisexual +
stalked +  and simple +
Loose talus, sandy flats, barren rock +
disc--shaped +  and dish +
disc--shaped +
(3-)6-30-flowered +
0.2-2 times as long as leaves +
sessile +  and petiolate +
connate +
tightly appressed;occasionally arcuate-spreading +
swollen +
3 +  and 5 +
crassinucellate +  and bitegmic +
campylotropous +
reflexed;erect;arcuate-spreading +
stipitate-glandular +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
lilac +, pink +  and white +
fugacious +
0.7-1 times as long as sepals +
obovate +
Flowering spring–summer. +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
reddish-brown;dark-brown +
tuberculate +
oblongelliptic +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
1(-3)-veined +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
persistent +
distinct +
lanceolate +
not enlarging +
0.4 cm4 mm <br />0.004 m <br /> (0.57 cm5.7 mm <br />0.0057 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
branched +  and simple +
ascending;erect +
glandular-hairy +
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
[30 +  and 3 +
papillate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (?) +  and 0.02 cm0.2 mm <br />2.0e-4 m <br /> (?) +
distinct +
filiform +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Arenaria nuttallii subsp. gracilis +  and Minuartia nuttallii subsp. gracilis +
Minuartia nuttallii var. gracilis +
Minuartia nuttallii +
variety +
divided +
low-rounded +
10 +  and 8 +
erect +  and recurved +
rhizomatous +  and taprooted +
plant +  and mat-forming +
pubescence of simple hairs or stalked glands +  and glabrous +
23 +, 15 +, 14 +, 13 +, 12 +, 10 +, 9 +  and 7 +