Flowering Plants and Fruits found at Chestnut Ridge Metropark!




Tall Bell Flower

Campanulaceae Family

Campanulastrum americana

Tall Bell Flower is radially symmetrical and has a corolla of 5 un-fused petals.  The petals do not form a bell shaped flower, despite the name; it is more star-like. The calyx is made of 5 fused sepals and the flowers develop and bloom on a spike.  It appears to have 5 carpels, based on the shape of what appears to be a hypogynous ovary with a syncarpous gynoecium.  The ovary appears to be superior and the have 5 fused carpels, leading the the assumption of a hypogynous ovary and syncarpous gynoecium.


Citronella Horse Balm

Lamiaceae Family

Collinsonia canadensis

Horse Balm has a zygomorphic corolla of 5 fused petals and has a calyx of 5 free sepals.  There are 2 fused carpels (syncarpous gynoecium) in what I believe is an epigynous positioned ovary.  This flower has a distinctive shape to it, with two long stamen reaching out from the edges of the corolla.  The inflorescence type appears to be a panicle.


Spotted Jewelweed

Balsaminaceae Family

Impatiens capensis

Spotted Jewelweed is another flower with a zygomorphic 5 petaled corolla.  There seem to be three sepals that are free and tiny.  I think that Spotted Jewelweed  has a perigynous ovary position and a syncarpous gynoecium (but it was hard to tell).  I think the inflorescence type is solitary… but don’t quote me on any of this.  The fruit of Jewelweed is a small capsule that bursts open when touched.  What a dispersal method!!


Tall Ironweed

Asteraceae Family

Vernonia gigantea

Tall Ironweed is an overall zygomorphic flower, but it’s disk flowers are actinomorphic with 5 fused petals and 5 free sepals.  Tall Ironweed has no ray flowers.  These plants have a syncarpous gynoecium of 2 fused carpels.  The ovary position is inferior, epigynous.  This inflorescence is a capitulum.




Acorns are from oak trees.  The fruit type is a nut and the inflorescence type is a catkin.



These Spicebush fruits are berries.  The inflorescence type is umbel clusters along the branch.



These are capsule fruits.  The inflorescence seems that it would be solitary due to the separation of the flowers from each other and the stem.



Grasses produce grains as their fruit.  I believe this grass’s inflorescence would be a spike based on how close to the stalk (peduncle?) the individual grains are.