S e m Z o c f - r s Z ° , dl NOrt 1 Cfar°lina ! t0 Florida! Alabamai Dr. Gates!
branched at d ie s u m m it the 3 $ eie0t’ ?imPle b e lw . much
heads nearly half “ e branchlets terminating m roundish compact
cronate the lowest onp f dlameter' Bracts nearl7 orbicular, ciliate, mu-
those oi' the stem S Pt ! T g m® e Pairs ° f leaflets resembling
ments of the oalvv q a 1- etS a n,10st ^ ^ ormj dotted. Flowers white. Seg-
attenuate at the ^ a seTV eSm U T oL " 8 Petals oblong-lanceolate,
its large involucrate bracts a ®Pef les on account of its habit,
petals has hppn op a aeePly divided and plumose calyx, and narrow
grounds^^ for s e y e rX h e r snLfpdf mCt W but sufficLm
tals, and in P m „ | £ thave a slmilar calyx and very narrow pe- Th«. | „„ oaj jp s $ s d p &
I ribe IV. TRIFOLIEH3. Broun.
Corolla papilionaceous. Stamens d i a d p l n h n n o p t
S t “S I T 1 T « ^ 7 -M o l*,* ' .. J a e t s ^ r z S ;
M e ,c .p itt,te ,o r um b e to te .C“ “ “ ° " te™ " a1' pacemo», spi.
29. TRIFOLIUM. Tourn. inst. t. 228; Linn, (partly) ; DC.prodr. 1. c.
« « « ^ I T o Z Z Z ? “c S f * “" } pc,the petals usnall. all , U commonly mar■eie•s,ceenn,’t 5o'rc lepfetr;s i1ste-n*t; •
aZnyZ chohLerenntt ^wkituh) rth™e st,a0m1 en-turbe:, evie xai*ll,ulme bl*oaneg' er thPan Ithe3 wings and
these mostly longer than the keel. Ovary 2-6-ovuled: style filifornf ! Le-
gumes smafl, membranaceous, 1-2- or sometimes 3-6-seeded, indehiscent or
S ^ i t r l a ventral suturei incIuded iQ tbe ■ f l “ -
diffusT T p ’ 7 ” aceous and stipitate. Herbs, often «espitose or
lvlrifoiinl t lS Pn y 3' (rardy 5“7-) foliolate> or occasionally pinnate-
ly tnfoholate: leaflets commonly denticulate;' the veins straight simple or
forked, but scarcely reticulated (except in § Involucrarium). Stipules adnate
to the base of the petiole. Flowers axillary or terminal, denselv spicate
: ^ p“1“' Ied’whi,e-
§ 1. Heads or spikes not involucrate.-Umrouem proper.
* Corolla marcescent or deciduous, never yellow: flowers in pedunculate 'or sessile
spikes or ovate heads, not deflexed when old: calyx not inflated after flowering.
4 upper teeth somewhat spirally incurved or tortuous. Hook. fl. Bor.-Am. 1;
p . 130, t. 48. • j
Oregon, between the Spokan River and Kettle Falls, Douglas. Abundant
also on Grand Ronde Prairie, east of the Blue Mountains. Nuttall. June-
f H Flowers rather large, red. Calyx-tube campanulafe, a little inflated.
Legume 1-2-seeded. Hook.
2. T. plumosum (Dough) : silky-pubescent; stem erect, tall; leaflets linear
lanceolate, acuminate, denticulate, on very long petiolps, the uppermost
subsessile ; stipules linear-lanceolate, acuminate, adnate above the middle to
the petiole; heads of flowers conical-oblong, pedunculate, ebracteate; calyx
very hairy; the teeth linear, straight, silky-plumose, longer than the tube of
the corolla; ovary 4-ovuled. Hook. fl. Bor.-Am. 1. p. 130, t. 49.
Blue Mountains, Oregon ; in alluvial soil, Douglas, Nuttall. june-July.—
4 Leaflets very acute. Stipules large ; the upper ones broader and shorter,
HookS ab°Ut 3 mCbeS Iong‘ Flowers white, at length somewhat spreading.
i 3’ ^ feiocephalum (Nutt,! mss.) : “ softly pilose or villous, stem erect;
leaves all on long petioles ; leaflets lanceolate or oblong-lanceolate, acutely
and minutely serrulate; stipules linear-lanceolate, acuminate; heads subglo-
bose pedunculate, the flowers at length reflexed ; calyx very hairy, divided
tiumosp0 th<3 baS6; tbe teetb two-thirds the length of the corolla,
Prairies of the Wahlamet, and near Fort Vancouver; not uncommon.
May.— 4 Root somewhat fusiform and branching, tuberous, blackish.
Stem nearly simple, about a span high. Heads about an inch in diameter,
NNuuttttaallll. °TNVberaorlflyU Ca?llUieSdi toP T^ .a lpsl uamilods usmta.mens united. Legume 1-seeded.”
• 4 arvense (Linn.): somewhat silky-pubescent; stem erect, branching
; leaflets spatulate-lanceolate, obtuse, minutely 3-toothed at the apex entire
or obscurely serru ate, longer than the petiole ; stipules ovate, setaceously
acuminate; spikes oblong-cylindrical, very villous, more or less pedunculate
or subsessile; teeth of the calyx setaceous, longer than the corolla, at length
spreading; petals scmceiy connected.—jCwg. hot. t. 944; Michx.! fl. 2% .
te s t p m P' ’ Pr°dr- 2' P- 190; H°0k- 1 C-> Darlingt. fl.
®bd fields, &c. Canada! to Florida! Introduced? June-Aug.— (T) Plant
8-12 inches high. Spikes at length tawny. Corolla whitish, with a purple
spot on the wings. Legume 1-seeded.—The spikes are at first nearly sessile
and as it were bracteate at the base ; but when old the peduncles are frequently
as long as the spikes .—Stone-Clover. Rabbit-Foot.
5. T. albopurpureum: decumbent or assurgent, villous-pubescent: leaves
all on long petioles; leaflets narrowly cuneiform, truncate or emargiuate denticulate;
stipules ovate-lanceolate, subulate-acuminate ; spikes otate, very villous
at length on slender peduncles ; teeth of the calyx setaceous, some-
what spreadmg, rather longer than the corolla; petals scarcely connected.
California, D o u g l a s ffl Stems filiform, somewhat branched, about 6
inches long. Leaflets about half an inch in length. Flowers a little larsr
seedeT ^ T ' ar,Vense’ whltish and purple: vexiflum oblong. Legume 1-
Pratense (Linn.) : stems ascending, a little hairy ; leaflets obcordate
or oblong-ovate, and often emargmate, nearly entire; stipules broadly lanceolate,
membranaceous, nerved, setaceously acuminate; heads of flowers oVatp
dense, nearly sessfle, bracteate; teeth of the calyx setaceous, hairy, the lower
one much longer than the other 4, which are equal and about half the length