Wednesday, October 24, 2018

Pellitory, Three Seeded Mercury and Groundsel

And, for the end of the season a final couple of plants from the area,  but not yet seen along Rolandvue. The pellitory, possibly erect Pellitory of the Wall, has been seen occasionally but the exact  type of pellitory is uncertain.  There are various species. It has the clusters of bracts and flowers at the leaf axils. It may be Pennsylvania Pellitory. It is a candidate for "Whats That Plant".   This was on the north side of Rolandvue at the top of the hill, it is at least a relative of a plant from the Natural History Society Meetup.  From the Urticaceae family in can cause sensitivity and is also known as the asthma plant due to irritating pollen









Groundsel, Senecio vulgaris,  has yellow disc flowers,  somewhat like dandelion, but is a taller plant with deeply lobed clasping leaves(no petiole). There are fine hairs on both surfaces of the leaves.The flowers are in clusters and smaller than dandelion.  They go on to form white downy seeds.  It is said to be under reported, due to being inconspicuous.  A challenge.














Three-seeded Mercury or Acalypha rhomboidea is in the spurge family but has clear rather than the more common milky sap.  It runs about 1-2 feet tall, with unbranched somewhat hairy stem.  Leaves are lanceolate with pinnate venation.Petioles are about 4 cm.  Seeds are in tan pods.  The flowers at the leaf axil are somewhat similar to pellitory.  The leaf veins and the fruit are helpful distinguishing features.




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