THE PEA FAMILY 
69 
*. inch long, rose-colour, in round, stalked heads inch long; the calyx a little shorter 
than the corolla, with triangular, pointed, spiny teeth, the lower tooth being longer than the other 
4 ; the pod a little longer than the calyx, 2-seeded. The stems 2-6 inches high, upright ; and 
the leaves divided to the base into 3 narrowly lance-shaped, toothed leaflets, with egg-shaped 
(ovate), pointed stipules. 
Very rare. On dry banks at the Lizard, in Anglesea, and the Channel Isles. June — July. 
Annual. 
White or Dutch Clover. (Trifolium repens, Linn.)— Flowers f-£ inch long, white or 
white tinged with bright pink, when faded drooping and becoming brown, each flower on a short 
stalk, massed in roundish heads on long stalks ; the calyx less than half the length of the corolla, 
with triangular, pointed teeth, the upper a little longer than the lower ; the pod longer than 
the calyx, enveloped in the withered corolla, 2-4-seeded. [As described in the genus 
Trifolium.] The stems 3-18 inches long, creeping, rooting at the joints ; the leaves on long 
stalks, divided to the base into 3 inversely egg- or heart-shaped, toothed leaflets, which often have a 
white band across them and a purplish spot ; the stipules oblong and abruptly pointed. Smooth. 
This clover is generally accepted as the Shamrock of Ireland. 
Very common. Meadows and pastures. May — September. Perennial. [Plate 34. 
*Alsike Clover. (Trifolium hybridum, Linn.) — Not a native. Very similar to the 
Dutch Clover (Trifolium repens), but with rather pinker flowers ; the stems sometimes 2 feet high, 
never rooting at the joints, and with a few adpressed hairs. 
Not common. In rich pastures, introduced from Alsike, Sweden. May — September. Perennial. 
Strawberry-headed Clover. (Trifolium fragiferum, Linn.) — Flowers rather similar 
to the Dutch Clover (Trifolium repens), \ inch long, stalkless (sessile), pale rose-colour, in round 
long-stalked heads ; the calyx downy, more than half the length of the corolla, with pointed, equal 
teeth, becoming when in fruit much inflated, thin, semi-transparent, and veined ; the pod small, 
1 -2-seeded. The stem 6-12 inches long, creeping, rooting at the joints ; the leaves on long stalks, 
divided to the base into 3 inversely egg-shaped, toothed leaflets, with oblong stipules, ending in a 
long point. [ Plate 34. 
Fairly common. Sandy commons, pastures. July — August. Perennial. 
^Reversed Clover. (Trifolium resupinatum, Linn.) — Not a native. Very similar to 
the last species, but with the flower heads on shorter stalks, and the corolla twisted round inside 
the calyx so that the standard is turned outwards instead of inwards as in all the other Clovers. 
Not a native. Appearing occasionally in some of the southern counties, and also in Lancashire. 
May — June. Annual. 
Hop Clover. (Trifolium procumbens, Linn.) — Flowers £ inch long, lemon-yellow, in 
shortly stalked oval heads of 20-40 almost stalkless (sessile) flowers, which droop and fade to a 
pale yellow-brown ; the calyx is shorter than the corolla, the teeth unequal, 2 shorter than the 
other 3 ; the pod a little longer than the calyx, the style not half the length of the pod, 1- 
seeded. [As described in the genus Trifolium.] The stems 6-18 inches long, slender, and wiry; 
the leaves shortly stalked, divided to the base into 3 inversely egg-shaped (obovate) leaflets, the 
middle one appearing to be shortly stalked (pinnately trifoliate). Stipules broad and pointed. 
Very common. Fields, pastures, and waste places. June — August. Annual. 
Trifolium agrarium, Linn., is occasionally found, but is not a native. It is very similar to 
the Hop Clover (Trifolium procumbens), but has larger flower heads, and the style nearly as long 
as the pod. 
