Chickweed

Stellaria media

Caryophyllaceae

A tender star-flowered green for cooling itchy skin and a spring salad.

Cool-season yard green. Identify the line of stem hairs and split white petals.

Parts used: Aerial parts
Traditional notes: Itchy skin poultice · Spring green · Cooling wash
Grow · USDA 6b: Cool-season annual. Winter and spring. Or stop weeding a damp corner in March. In work: Feb · Mar · Apr · May · Sep · Oct · Nov
Harvest: Tips before it mats and yellows in heat.

It is a cool-season clock. Summer heat is the end.
A line of hairs down the stem is the ID, not a guess.
Chickens named it. They are not wrong.

Safety

Dirty yards as salad Known Caryophyllaceae allergy (rare)

Lore

Stellaria, little star. A cool-season stitchwort that herbalists used for itch and that foragers put in salad. It closes when rain is coming. The mouse-taste of the stem is how you know you have it.

The Herbarium — a teaching catalog, not a clinic. Traditional use is history, not a prescription. USDA 6b dates are a week either way, not a promise. Do not eat, drink, or harvest a plant you cannot name.