Spring Flora of Oklahoma 
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2. Lithospermum canescens (Michx.) Lehrn. Hoarv Puccoon. 
Perennial, somewhat canescent when young. Leaves oblong, entire. 
Corolla orange-yellow, appendaged, not woolly within. Tube funnel- 
fonn, prominently crested in the throat. Nutlets ovoid, lustrous, 
keeled. 
In dry soil. April-June. Frequent. 
3. Lithospermum Gmelini (Michx.) Hitch. Hairy Puccoon. Per¬ 
ennial, hirsute or hispid. Leaves linear to lanceolate or oblong, 
lower reduced to scales, entire. Corolla deep orange-yellow, with 
appendages in the throat and woolly within. Nutlets ovoid, lustrous. 
In dry soil and woods. April-June. Kingfisher and Oklahoma 
counties. 
4. Lithospermum linearifolium Goldie. Narrow-leaved Puccoon. 
Perennial, strigose-pubescent. Leaves linear. Flowers of two kinds 
in terminal, leafy racemes. Corolla of the earlier ones salver-form, 
bright yellow, throat crested, the base of the tube not bearded within. 
Later flowers smaller, pale yellow, cleistogamous. Nutlets white, 
shining, ovoid, pitted, keeled on the inner side. 
In dry soil. April-July. Frequent. 
IV. ONOSMODIUM Michx. 
Perennial, stout, hispid or hirsute, branching herbs. 
Leaves alternate-entire, strongly veined. Flowers yellow¬ 
ish or greenish-white, proterogynous, in |leafy-bracted, 
scorpioid spikes or racemes. Calyx deeply 5-parted. Cor¬ 
olla tubular or tubular-funnel-form, 5-lobed, throat not ap¬ 
pendaged, the sinuses slightly indexed, the tube with a 
glandular, 10-lobed band within at the base. Stamens 
5, inserted on the tube. Ovary 4-parted. Nutlets 4, ovoid, 
sometimes sparingly pitted, shining, smooth, white, at¬ 
tached by the base. 
Nutlets not constricted. 1. 0. occidentale 
Nutlets distinctly constricted just above the base. 
2. O. hispidissimum. 
1. Onosmodium occidentale Mackenzie. Western False Grom- 
well. Stem strigose or hirsute-pubescent. Leaves lanceolate to 
ovate-lanceolate, strongly veined. Corolla 6"-10" long, canescent all 
over outside. Nutlets ovoid, dull, not constricted at the base. 
On prairies and plains. May-July. Oklahoma County. 
2. Onosmodium hispidissimum Mackenzie. Shaggy False Grom- 
well. Spreading-hirsute with rough, bristly hairs. Leaves lance¬ 
olate, ovate-lanceolate or oblong, 5-9 ribbed. Flowers very numerous 
