Ceanothus ovatus Desf.
Family - Rhamnaceae
Stems - Woody, multiple from base, to 1m tall, branching, ferruginous, sparse pubescent, rugose. New growth sericeous, green.
Leaves - Alternate, petiolate,
stipulate. Stipules 4.5mm long, 1mm broad, pubescent, attenuate. Petioles
to 7mm long, pubescent. Blades to 6cm long, -3cm broad, oblong-elliptic
to lance-oblong, crenate-serrate, blunt to acute, densely pubescent(villous)
and dull below, deep green and pubescent above, rounded to cuneate at base.
Inflorescence - Terminal
panicles from new growth. Peduncles shorter then subtending leaf, to 2cm
long, lanate. Pedicels white, to 1.4cm long, .6mm in diameter, expanding
just below hypanthium.
Flowers - Petals 5, white,
long clawed, spreading, glabrous, to 2.5mm long. Limb to 1.2mm broad, cupped.
Stamens 5, opposite petals, erect. Filaments to 2mm long, white, glabrous.
Anthers .2mm long, yellow. Style 3-lobed, 2mm long, glabrous, white. Ovary
3-locular, green, surrounded by peringynous disk. Calyx lobes 5, in-curved,
white, glabrous, to 1.6mm long. Hypanthium white, 1mm long, persistent.
Fruits - 3-lobed capsules to 4.5mm broad, dark purple to black. One seed per carpel.
Flowering - April - June.
Habitat - Upland and rocky prairies, loess hills, glades, rocky woods.
Origin - Native to U.S.
Other info. - Steyermark
lists two varieties for this species in the state. The plant described above
is var. pubescens T.&G. ex Wats. A synonym for
this variety is C. herbaceous var. pubescens
(T.&G.) Shinners. This is the most common variation found in the
state. The other variety, var. ovatus, has leaves
which are glabrous to only sparse pubescent below.
This species is scattered throughout
portions of the state but is most frequent in the western half of the state.
Another species, C. americanus L., resembles this
species but the former has more ovate leaves, more cylindric inflorescences,
and longer peduncles. C. americanus is listed in this
same section of this website. Both species are brewed as tea for medicinal
uses.
Photographs taken at the James C. McCormack Conservation Area, Holt County, MO., 5-3-00 and 6-30-00.
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