58 
Spring Flora of Oklahoma 
long, narrow, deeply pinnatifid, lower petioled, the upper nearly 
sessile. Flowers very small, white. Pod linear, ascending, 8"-12" 
long. Seeds orbicular, wing margined. 
In open places. March-May. 
FAMILY 29. CRASSULACEJE. Orpine Family. 
Herbs, mostly fleshy or succulent, with cymose or rare¬ 
ly solitary or symmetrical flowers. Stipules none. Calyx 
persistent, free from the ovary or ovaries, 4-5-lobed. 
Petals equal in number to the calyx lobes, distinct, 
or more or less united. Stamens of the same number or 
twice as many as the petals. Receptacle with a scale 
at the base of each carpel. Carpels of the same number 
as the sepals, distinct or united below. Ovules numer¬ 
ous. Follicles membranous, 1-celled. 
I. SEDUM (Tourn.) L. 
Fleshy, mostly glabrous herbs, erect or decumbent, with 
alternate, entire leaves and perfect flowers in terminal 
cymes. Calyx 4-5-lobed. Petals 4-5, distinct. Stamens 
8-10. Carpels 4-5, distinct. Follicles few-seeded or many- 
seeded. 
Petals yellow. 1. S. Nuttallianum. 
Petals purple or white. 2. S. pulchellum. 
1. Sedum Nuttallianum Raf. Nuttall’s Stonecrop. Annual, 
low tufted, glabrous, 2'-3' high. Leaves alternate, scattered, linear- 
oblong, teretish, sessile, entire. Cyme 2-5-forked. Flowers sessile 
or very short-pedicelled. Petals yellow, lanceolate, acute. Follicles 
widely divergent, tipped with the short subulate style. 
In dry, open places. May. Wichita and Arbuckle Mountains. 
2. Sedum pulchellum Michx. Rock-moss, Annual, glabrous, as¬ 
cending or trailing, branched at the base. Leaves densely crowded, 
terete or linear, sessile, obtuse at the apex, slightly auriculate at the 
base. Cyme 4-7-forked, its branches spreading or re-curved in flower. 
Flowers sessile. Petals rose-purple, pink, or white, linear-lanceo¬ 
late, acute. 
