Flora of North America species comparison

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Marshallia obovata

savanna Barbara's-buttons, spoonshape Barbara's buttons
Habit Plants 10–60 cm.
Leaves

mostly basal (distal slightly reduced);

basal petiolate;

blades 3-nerved, elliptic, oblanceolate, or spatulate, 5–10 cm × 5–15 mm.
Peduncles

20–40 cm.
Corollas

white, lobes 2.5–6 × 0.5–1 mm.
Phyllaries

5–10 × 2–3 mm, apices obtuse.
Heads

1–2, 20–30 mm diam.
Paleae

linear-spatulate, apices obtuse.
Pappi

scale margins entire or denticulate.
2n

= 18.

Marshallia obovata
Phenology Flowering May–Jun.
Habitat Understories, pine forests
Elevation 100–1000 m (300–3300 ft)
Distribution
from FNA
AL; FL; GA; NC; SC; VA
[WildflowerSearch map]
[BONAP county map]
Discussion

Marshallia obovata grows on the piedmont and on the Atlantic coastal plain. Scapiform plants with the leafy parts of stems less than 1/4 lengths of peduncles are sometimes known as var. scaposa. They occur along the inner Atlantic coastal plain.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 457.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Marshalliinae > Marshallia
Sibling taxa
M. caespitosa, M. graminifolia, M. grandiflora, M. mohrii, M. ramosa, M. trinervia
Synonyms Athanasia obovata, M. obovata var. platyphylla, M. obovata var. scaposa
Name authority (Walter) Beadle & F. E. Boynton: Biltmore Bot. Stud. 1: 5. (1901)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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