Mecardonia acuminata

axil-flower, axilflower
Family

Scrophulariaceae

Leaf Arrangement

opposite

Leaf Attachment

petiolate, sessile

Leaf Margin

serrate

Leaf Type

simple

Leaf Shape

elliptic, oblanceolate

Growth Form

forb, shrub

Flower Color

blue, pink, purple, white

Flower Month

June - December

Height (meters)

0.1 - 0.7

Milky Sap

No

Armed/Unarmed

Unarmed

Origin

native

Lifespan

perennial

Growing Season

Warm season


Wetland Class

FACW

Wetland Coefficient of Conservatism

4

Prairie Coefficient of Conservatism

5

Field Characters

Identification tip: May be confused with Gratiola neglecta which is a sweet smelling annual forb that blooms in the spring, has round stems, and feels clammy due to fine, glandular hairs on the upper stem and leaves, pedicels, and sepals, while Mecardonia acuminata is not sweet smelling, does not feel clammy, and has square stems. Mecardonia procumbens is sometimes found in coastal prairie and also has square stems but has yellow flowers, leaves less than 25 mm long, and is procumbent, while Mecardonia acuminata has white flowers, usually with purple stripes, leaves more than 3 cm long, and is erect.

Natural History

Found in ditches, bogs, depressions in fields, prairies, swamps and pine savanna of Louisiana and east Texas.

Habitat

Marshes, savannahs, alluvial woods, and low roadsides, ditches, bogs, field depressions, prairies, swamps, flat plains, banks of streams and ponds.