''Hydrophyllum brownei'', or Browne's waterleaf, is a rare North American plant species found only in the
Ouachita Mountains in
Arkansas
Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage ...
. It grows in forested hillsides above the
Cossatot River
The Cossatot River is an river in Howard, Polk and Sevier counties in the U.S. state of Arkansas.
The Cossatot begins in the Ouachita Mountains southeast of Mena, Arkansas. The river flows through the Ouachita National Forest and then in a ge ...
in
Howard County, as well as in
Polk
Polk may refer to:
People
* James K. Polk, 11th president of the United States
* Polk (name), other people with the name
Places
*Polk (CTA), a train station in Chicago, Illinois
* Polk, Illinois, an unincorporated community
* Polk, Missouri ...
and
Garland Counties.
/ref>
''Hydrophyllum brownei'' is an herb up to 50 cm (20 inches) tall, spreading by means of underground rhizomes
In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...
. Leaves are pinnately compound, the leaflets very often pinnately lobed, with short bristly hairs. Flowers are lavender to almost white, 10–12 mm long.[Kral, R. & V. Bates. 1991. A new species of ''Hydrophyllum'' from the Ouachita Mountains of Arkansas. Novon 1(2): 60–66.](_blank)
includes line drawings on pages 61 + 62
References
brownei
Flora of Arkansas
Plants described in 1991
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