B U P L E U R U M rotundifolium.
Thorow-wax.
P E N T A N D R I A Digynia.
G e n . C h a r . Involucrum lo n g e r than the um b e ls , fiv e le
a v e d . Petals cu r led in . Fruit ro u n d ilh , com -
p re ffed , ftriated.
S p e c . C h a r . N o general involucrum. Leaves perfoliate.
S y n . B u p leu rum ro tu n d ifo lium . Linn. Sp. P I. 340.
HudJ. FI. An. i n . With. Bot. Arr. 267. Relh.
Cant. 10 8 .
B . p e r fo lia tum ro tu n d ifo lium ann u um . Raii Syn. 2 2 1 .
A SOMEWHAT unfrequent annual in corn-fields, generally
preferring a dry and chalky foil. Mr. Lewin communicated it
from the neighbourhood of Dartford in Kent.
This herb like the Sanicle has the reputation of being a
vulnerary, a quality which no medicine carj have, any other-
wife than as a tonic ftrengthening the conftitution, nor can
any external application be fpecifically healing or confolidating,
nor be ufeful in any other way, than as a defence from the air.
The root is fmall and fibrous. Stem alternately branched, a
little zigzag, clothed with Angularly perfoliate leaves, which
have occafioned the Englilh name, from the old word wax, to
grow. Both leaves and involucra are entire and lharp pointed.
The flowers are yellowilh and inconfpicuous, coming out in
June and July. Every part of the herb is remarkably hard and
rigid, and has a flight aromatic fmell.