What is "pencil flower"

Pencil \Pen"cil\, n. [OF. pincel, F. pinceau, L. penicillum, penicillus, equiv. to peniculus, dim. of penis a tail. Cf. Penicil.]

1. A small, fine brush of hair or bristles used by painters for laying on colors.

   With subtile pencil depainted was this storie.
   --Chaucer.

2. A slender cylinder or strip of black lead, colored chalk, slate etc., or such a cylinder or strip inserted in a small wooden rod intended to be pointed, or in a case, which forms a handle, -- used for drawing or writing. See Graphite.

3. Hence, figuratively, an artist's ability or peculiar manner; also, in general, the act or occupation of the artist, descriptive writer, etc.

4. (Opt.) An aggregate or collection of rays of light, especially when diverging from, or converging to, a point.

5. (Geom.) A number of lines that intersect in one point, the point of intersection being called the pencil point.

6. (Med.) A small medicated bougie.

   Pencil case, a holder for pencil lead.

   Pencil flower (Bot.), an American perennial leguminous herb ( Stylosanthes elatior).

   Pencil lead, a slender rod of black lead, or the like, adapted for insertion in a holder.

n. An American perennial leguminous herb (''Stylosanthes elatior'').