What plant is that?

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Photo credits: © Francis R. Underwood 2016

June’s mystery plant is found growing in sandy soil or gravel. 
It is a very small but attractive plant with pink to red flowers.  It is much easier to find when it is in bloom and it is in bloom now as I write this clue. This small plant is usually prostrate- and the stem is 1-2” long.  The leaves are opposite, linear-filiform, ½ - 2” long, and have hyaline, triangular-shaped stipules which are quite large.  It has 5 pink petals and 5 reddish-purple sepals and between 6-10 stamens.  This plant blooms from June through October.

It’s. . .

Botanical Name:		Spergularia rubra
Common Name:		Pink (Red) Sand-spurrey
Family:		Caryophyllaceae (Pink Family)
Habitat:		Sandy, gravelly dry areas, roadsides