Okenia

Schlechtendal & Chamisso

Linnaea 5: 92. 1830.

Etymology: For Lorenz Oken, 1779–1851, German naturalist
Treatment appears in FNA Volume 4. Treatment on page 39. Mentioned on page 16.

Herbs, annual, viscid-pubescent, from long, narrow taproots. Stems trailing, unarmed, without glutinous bands on internodes. Leaves petiolate, of unequal size in each pair; blade thin to somewhat fleshy, base ± asymmetric. Inflorescences in axils of smaller leaf of pair, 1-flowered, peduncles short in flower, peduncles greatly elongating, pushing into ground in fruit; bracts deciduous, 3 at base of flower, distinct, lanceolate, thin, translucent. Flowers bisexual, chasmogamous; perianth radially symmetric, funnelform but strongly oblique, constricted beyond ovary, gradually flared to 5-lobed limb; stamens 5–18, included or slightly exserted; styles slightly exserted; stigmas peltate. Fruit geocarpous, ± oblong, unribbed, corky, glabrate, smooth or rugose.

Distribution

s North America

Discussion

Species 1 or 2 (1 in the flora).

Selected References

None.

Lower Taxa

"thin" is not a number."elongating" is not a number.

... more about "Okenia"
Richard W. Spellenberg +
Schlechtendal & Chamisso +
glutinous +
unequal +
woody +, leathery +  and fleshy +
undulate;plane;linear;ovate or more or less round +
deciduous +
distinct +
lanceolate +
corollalike +  and petaloid +
s North America +
curved +  and straight +
For Lorenz Oken, 1779–1851, German naturalist +
inconspicuous +  and showy +
1 +  and 80 +
chasmogamous +  and bisexual +
geocarpous +
rugose +  and smooth +
lateral +  and terminal +
unequal +
pubescent +  and glabrous +
sinuate +  and entire +
gradually flared +  and 5-lobed +
constricted +
thick +  and thin +
fibrous;fleshy +
membranaceous +
ribbed +, 10-ribbed +  and 5-ribbed +
pubescent +, glabrous +  and warty +
wrinkled +
exserted +  and included +
fusiform +  and linear +
filiform +
Nyctaginaceae +
gland-tipped +