Marshallia trinervia

(Walter) Trelease

Rep. (Annual) Arkansas Geol. Surv. 1888(4): 196. 1891.

Endemic
Basionym: Athanasia trinervia Walter Fl. Carol., 201. 1788
Treatment appears in FNA Volume 21. Treatment on page 457.

Plants 40–60 (–80) cm (rhizomatous). Leaves mostly cauline (not notably reduced distally); proximal petiolate; blades strongly 3-nerved, ovate, 4–10 cm × 11–30 mm. Heads 1–5, 20–33 mm diam. Peduncles 5–15+ cm. Phyllaries 8–12 × 1.5–3 mm, apices acute. Paleae ± linear, apices acute. Corollas pink, lobes 3.5–7.5 × 0.5–1 mm. Pappi: scale margins serrulate. 2n = 18.


Phenology: Flowering May–Jun.
Habitat: Understories, mixed hardwood forests, along streams, slightly disturbed sites
Elevation: 100–500 m

Distribution

V21-1147-distribution-map.gif

Ala., Ga., La., Miss., N.C., S.C., Tenn.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Marshallia trinervia"
not tailed +, rounded +  and obtuse +
cream +  and purple +
connate +  and distinct +
acute;acute +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and open +
indeterminate +  and determinate +
Linda E. Watson +
(Walter) Trelease +
decurrent +
Athanasia trinervia +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (3 cm30 mm <br />0.03 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
clavate +  and turbinate +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +  and Tenn. +
100–500 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Understories, mixed hardwood forests, along streams, slightly disturbed sites +
in open , corymbiform arrays +  and singly +
indeterminate +
2 cm20 mm <br />0.02 m <br /> (?) +  and 3.3 cm33 mm <br />0.033 m <br /> (?) +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
hemispheric;obconic +
sessile +  and petiolate +
lance-linear +  and linear-oblong +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.1 cm1 mm <br />0.001 m <br /> (?) +
2-carpellate +
persistent +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering May–Jun. +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
12 +  and 24 +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Rep. (Annual) Arkansas Geol. Surv. +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
lance-deltate +  and lance-attenuate +
scarious +  and membranous +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Marshallia trinervia +
Marshallia +
species +
80 cm800 mm <br />0.8 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +
60 cm600 mm <br />0.6 m <br /> (80 cm800 mm <br />0.8 m <br />) +