Endemic to a few high-altitude localities in the Sierra Nevada of California, this delicate annual herb produces small pink flowers under specific alpine conditions. It represents a rare botanical treasure adapted to vernally wet gravelly soils.
The species is highly specialized, relying on seasonal moisture to complete its rapid life cycle before the dry summer heat sets in. Because of its restricted range, it is of significant concern to conservationists.
The plant exhibits a prostrate growth habit, forming tiny rosettes of fleshy, green-to-reddish leaves. The leaves are spatulate and measure only a few millimeters in length.
Its inflorescences consist of small, dense scorpioid cymes bearing tiny flowers with four pink petals and prominent sepals that dry to a papery texture.
Spring to early summer
Due to its rarity and endangered status, this species has no commercial or landscaping applications. Its primary value is ecological and scientific, serving as an indicator of healthy vernal pool and granite outcrop ecosystems.
This tiny plant is capable of completing its entire life cycle from germination to seed production in just a few weeks while moisture is available.
Its survival is heavily dependent on the preservation of vernal pools and seasonal wet zones, which are increasingly threatened by climate change and development.
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