A video showing the gynecandrous condition of a spike; pistillate flowers distal, staminate flowers proximal. A...

Spiranthes praecox, greenvein lady's tresses, is an orchid native to eastern North America, from eastern Texas to...

Habit and habitat of Chaptalia tomentosa. Characters demonstrated include the taxon's glabrous adaxial leaf...

Orchid morphology of Oncidium. Structures labeled include: petals; sepals; callus; column; column wings; stigma;...

Carex pachystachya habit and perigynium dissection. For context, see: Carex Interactive Identification Key.

Carex lupulina habit and dissection. For context, see: Carex lupulina species page and Carex Interactive...

Carex intumescens habit and perigynium dissection. For context, see: Carex intumescens species page and Carex...

Carex squarrosa habitat and perigynium dissection. For context, see: Carex squarrosa species page and Carex...

Carex davisii habitat, habit, and perigynium dissection to expose achene. For context, see: Carex davisii species...

Carex oligosperma habit and perigynium dissection. For context, see: Carex oligosperma species page and Carex...

Carex communis habit. For context, see: Carex communis species page and Carex Interactive Identification Key.