Gradiradix aestuariaWandering Stilt-Tree

In pits that bear the flower, a sandy loam of glacial origin is exposed beneath the black film of leaf humus, often no wider than a boot tip. Soon after windthrow the soil remains moist but not compacted, and the mineral layer reddens slightly where air reaches it. Pitfall Starflower does not appear in hollows of humus alone; its shoots follow this oxygenated boundary. The cue that breaks dormancy seems to be not light alone, but also the altered mycorrhizal community of overturned soil.

Flowering is confined to the interval before beech and lime leaves unfold, while meltwater still lingers at the pit bottom. On clear mornings I observed small hoverflies and early solitary bees pausing briefly within the pale, violet-washed tepals. The low flower is sheltered from wind, and the pit wall forms a sun pocket several degrees warmer than the surrounding forest floor. The pale golden center is strongest in plants receiving oblique spring light, suggesting better carotenoid development in the anthers.

A single root pit supports the plant only during its first few years, not throughout the decades in which the hollow slowly levels. Each plant spends two or three springs as leaves, then flowers once in a year with sufficient light, sheds seed onto the pit floor and slope, and dies. As leaves and fragments of fallen wood accumulate and saplings begin to shade the hollow, germination ceases. Its disappearance is not failure, but the normal end of the colony, with seed left in the soil to wait for another windthrow.