Tag: Platanthera

Platanthera species and its hybrids

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I am shocked that I have not uploaded these species and hybrids! Platanthera is by far my favorite genus of species. Several species of this genus can be found in New Jersey, including the white-fringed orchid (P. blephariglottis), the small green orchid (P. clavellata), and the orange-crested orchid (P. cristata), along with some hybrids like canby’s bog orchid (Platanthera × canbyi). I was first introduced to this genus by the photography of the amazing Jim Fowler.

There are three kinds of Platanthera orchids, all found in New Jersey’s pinelands! White-fringed orchid is one of the larger orchids with a beautiful inflorescence. It is found across much of the eastern US and Canada. Globally secure, the orchid faces threats in several states throughout its range. Habitat destruction being one of the main threats, these orchids also face difficulties when natural fire is suppressed. Like many orchid species found in the pinelands, they need regular wildfires to help maintain their habitat. The orchid prefers open sunny wetlands, and wildfires help keep larger woody trees at bay.

Orange-crested orchid is a smaller orchid with striking orange flowers, blooming in mid to late summer. It shares its habitat with the white-fringed orchid, both needing similar habitats to thrive. Like the white-fringed orchid, it faces several threats in the wild, including a lack of wildfires.

When populations of white-fringed orchid and orange-crested orchid intersect, they can readily hybridize to form Canby’s bog orchid. The hybrid is more resilient than its parents and has a color between the two species.


In conclusion, these orchids represent the best our pinelands have to offer. I look forward to their blooms every year, looking forward to the white flowers carpeting open meadows. Pinelands need our help to be preserved, and I hope future generations can continue to enjoy these beautiful wildflowers.

Platanthera clavellata (Small Green Wood Orchid)

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A less showy cousin of the much larger and showier white-fringed orchid (they were growing near each other in pinelands of New Jersey.) The plant has but one large leaves with others being reduced to bracts along its stems. This particular plant was a youngling that was probably flowering for the first time.

There is some controversy regarding its inclusion into the Platanthera genus. I do not know enough about the morphology of the genus to elaborate further.

The spot I found this orchid seemed to have a healthy population of orchids that were reproducing. One thing that concerned me was the thickness of the understory. As this location was used by people and was near a park for human picnicking, the area hasn’t burnt enough. Pinelands is a fire ecology, and I worry about what thick understory would do to the local orchid population.

The flowers of these orchids are not as showy as some others in the Platanthera genus, but that allows us to have a clear look at the twist that results in the resupinate nature of orchid flowers. Most orchids go through this, with certain exceptions like Calopogon. Resupinate flowers are those that twist and turn upside down. As an orchid bud develops, the lip of the orchid is towards the flowering stem (as can be seen below), but as the bud begins to open, the flower twists till the tip point down. In this orchid, you can see the twist that each flower went through. 

  • Buds begining to distinguish
  • The twist of the orchid
  • One can look at the individual twists