Family - Asteraceae Stems - Stout, erect, herbaceous, to +2.5m tall, branching in the apical 1/2,...Dracma de oro de Cirene El Silphium es una planta extinguida, se piensa que era de la familia de...head--the rays of Silphium are very long. In this genus, only the ray flowers produce fruit; the...phyllaries (bracts) underneath the inflorescenceSilphium PERFOLIATUMDisk flowers - No info. yet.the stems in Silphium are extremely hairy, having a sandpaper feelFamily - Asteraceae Stems :Family - Asteraceae Stems - No info. yet.Family - Asteraceae Stems - To +1m tall, simple to branching near apex, erect, herbaceous, hirsute...There are 5 varieties of Silphium asteriscus listed in Weakley's Flora - not sure which one this one...the lower leaves of S. radula are opposite (also, do you notice how the stem appears square?);...Silphium perfoliatum Return to: || Photo Index || Front Page (Index to articles) ||Plant native to Cyrenaica ( Libya ) with unique medicinal qualities, now extinct. It only grew in a...Silphium perfoliatum Cladus: Eukaryota Regnum: Plantae Divisio: Magnoliophyta Classis: Magnoliopsida......the upper stem leaves show a tendency to be alternateDisk flowers :Inflorescence - No info. yet. Involucre - No info. yet.Durham Co., NC 6/21/2009Family - Asteraceae Stems - No info. yet.Flowering - August - October. Habitat - Dry open and rocky woods, glades, prairies, dry slopes,...Ray flowers :Disk flowers - No info. yet.Arrow showing the undivided style of the disk flower. Flowering - May - September. Habitat - Rocky...Disk flowers - Disk +2cm broad. Flowers staminate. Corolla tube yellow, 8-9mm long, contracted in...Durham Co., NC 6/21/2009 Carolina Nature Birds Fungi Herps Insects Beetles Butterflies ...Flowering - July - September. Habitat - Flatwoods, sandhills. Origin - Native to North America....Involucre. Ray flowers - No info. yet.actuellement en ligne sur le siteA pseudanthium in Bloomington, 8/2/03.