Mitella caulescens

Nuttall in J. Torrey and A. Gray

in J. Torrey and A. Gray, Fl. N. Amer. 1: 586. 1840 ,.

Common names: Creeping mitrewort
Endemic
Synonyms: Mitellastra caulescens (Nuttall) Howell
Treatment appears in FNA Volume 8. Treatment on page 112. Mentioned on page 77, 109.

Plants usually stoloniferous. Flowering-stems 13–45 cm. Leaves: petiole 1.5–14 cm, short-stipitate-glandular and, usually, long-stipitate-glandular, longer hairs spreading to retrorse, white; blade broadly cordate to broadly ovate, ± as long as wide, 1.2–6.5 (–8.5) × 1.4–7 (–8.2) cm, margins 3-lobed, 5-lobed, or 7-lobed, crenate-dentate, irregularly ciliate, apex of terminal lobe acute to obtuse, surfaces short-stipitate-glandular and sparsely long-stipitate-glandular; cauline leaves 1–3, proximal or mid cauline, alternate, sessile or petiolate, blade 0.3–4.3 (–6) × 0.4–4.4 (–7) cm. Inflorescences 1–2 (–4), remotely 5–25-flowered, 1 (–2) flowers per node, (anthesis basipetalous), not secund, 13–45 cm, short-stipitate-glandular and sparsely long-stipitate-glandular proximally, short-stipitate-glandular distally. Pedicels 2–8 mm, short-stipitate-glandular. Flowers: hypanthium broadly campanulate, 1.5–2 × 3–5.5 mm; sepals spreading or recurved, greenish, deltate-ovate, 0.9–1.5 × 1.4–2 mm; petals whitish green or greenish, sometimes purple-tinged proximally, 5–9-lobed, 3–4 mm, lobes linear, lateral lobes spreading; stamens 5, opposite sepals; filaments usually purple proximally and white distally, sometimes entirely white, 0.6–0.9 mm; anthers 0.2–0.4 × 0.2–0.4 mm; ovary 1/2 inferior; styles erect or spreading, cylindric, 0.8–1.1 mm; stigmas unlobed. Seeds reddish purple or dark reddish-brown, 0.7–1 mm, pitted. 2n = 14.


Phenology: Flowering Apr–Jul.
Habitat: Deep woods, meadows, stream banks
Elevation: 0-2100 m

Distribution

V8 219-distribution-map.gif

B.C., Calif., Idaho, Mont., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

"full" is not a number.

... more about "Mitella caulescens"
epigynous +, perigynous +  and hypogynous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
6.5 cm65 mm <br />0.065 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
7 cm70 mm <br />0.07 m <br /> (8.2 cm82 mm <br />0.082 m <br />) +
1.2cm;6.5cm +
short-stipitate-glandular +
acute +  and obtuse +
1.4cm +  and 7cm +
Douglas E. Soltis +  and Craig C. Freeman +
Nuttall in J. Torrey and A. Gray +
cordate +  and truncate +
4.3 cm43 mm <br />0.043 m <br /> (6 cm60 mm <br />0.06 m <br />) +
4.4 cm44 mm <br />0.044 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (4.3 cm43 mm <br />0.043 m <br />) +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
long-stipitate-glandular +
broadly cordate +  and broadly ovate +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 4.4 cm44 mm <br />0.044 m <br /> (?) +
3-carpellate +  and 2-carpellate +
petiolate +  and sessile +
cauline +, mid +  and proximal +
Creeping mitrewort +
ebracteate +, bracteate +  and 2-300(-1000+)-flowered +
B.C. +, Calif. +, Idaho +, Mont. +, Oreg. +  and Wash. +
0-2100 m +
white +  and purple proximally and white +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +  and 0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +
short-stipitate-glandular +  and long-stipitate-glandular +
unisexual +  and bisexual +
13 cm130 mm <br />0.13 m <br /> (45 cm450 mm <br />0.45 m <br />) +
leafless +  and leafy +
55 cm550 mm <br />0.55 m <br /> (65 cm650 mm <br />0.65 m <br />) +
13 cm130 mm <br />0.13 m <br /> (45 cm450 mm <br />0.45 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Deep woods, meadows, stream banks +
multicellular +
greenish yellow +, greenish white +  and green +
campanulate +
opposite +  and alternate +
spreading +  and retrorse +
6.5 cm65 mm <br />0.065 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
7 cm70 mm <br />0.07 m <br /> (8.2 cm82 mm <br />0.082 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
short-stipitate-glandular +
acute +  and obtuse +
1.4cm +  and 7cm +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
crassinucellate +, unitegmic +  and bitegmic +
short-stipitate-glandular +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
epigynous +, perigynous +  and hypogynous +
purple-tinged +, greenish +  and whitish green +
distinct +
5-9-lobed +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
peltate +  and jointed +
long-stipitate-glandular +  and short-stipitate-glandular +
1.5 cm15 mm <br />0.015 m <br /> (14 cm140 mm <br />0.14 m <br />) +
Flowering Apr–Jul. +
unequal +
in J. Torrey and A. Gray, Fl. N. Amer. +
spiny +  and ribbed +
dark reddish-brown +  and reddish purple +
straight +
ellipsoid +  and ovoid +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
distinct +
recurved +  and spreading +
deltate-ovate +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
list +  and count +
unbranched +  and branched +
persistent +
horizontal +  and erect +
connate +  and distinct +
spreading +  and erect +
cylindric +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
6.5 cm65 mm <br />0.065 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
7 cm70 mm <br />0.07 m <br /> (8.2 cm82 mm <br />0.082 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
short-stipitate-glandular +
acute +  and obtuse +
1.4 cm14 mm <br />0.014 m <br /> (?) +  and 7 cm70 mm <br />0.07 m <br /> (?) +
Mitellastra caulescens +
Mitella caulescens +
species +
annual +, biennial +  and perennial +