SimplePlant

Orchidaceae

Greater yellowspike orchid

Polystachya concreta (Jacq.) Garay & H.R.Sweet

Family
Orchidaceae
Genus
Polystachya

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Greater yellowspike orchid (Polystachya concreta)
FlowerPhoto: Matteo Bellucci, CC BY 4.0, from iNaturalist

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Common names

By language (4)
Chinese
多穗兰, 多穗蘭, 蜻蜒, 暹罗多穗兰
English
Greater yellowspike orchid, Orchid weed
Punjabi
ਪੋਲੀਸਟਾਚਿਆ ਲੇਹਮਬਾਚਿਆਨਾ
Vietnamese
Lan sáp

Synonyms

  • Callista flavescens (Blume) Kuntze
  • Cranichis luteola Sw.
  • Dendrobium flavescens (Blume) Lindl.
  • Dendrobium parvum Seidenf.
  • Dendrobium polystachyon Sw.
  • Dendrobium polystachys Thouars
  • Dendrobium polystachyum Sw.
  • Dendrobium polystachyum Thouars
  • Dendrorchis estrellensis (Rchb.f.) Kuntze
  • Dendrorchis extinctoria (Rchb.f.) Kuntze
  • Dendrorchis jussieuana (Rchb.f.) Kuntze
  • Dendrorchis minuta (Aubl.) Kuntze
  • Dendrorchis polystachyon (Lindl.) Kuntze
  • Dendrorchis purpurea (Wight) Kuntze
  • Dendrorchis rufinula (Rchb.f.) Kuntze
  • Dendrorchis shirensis (Rchb.f.) Kuntze
  • Dendrorchis similus (Rchb.f.) Kuntze
  • Dendrorchis tessellata (Lindl.) Kuntze
  • Dendrorchis wightii (Rchb.f.) Kuntze
  • Dendrorchis zollingeri (Rchb.f.) Kuntze
  • Dendrorkis extinctoria (Rchb.f.) Kuntze
  • Dendrorkis jussieuana (Rchb.f.) Kuntze
  • Dendrorkis minuta (Aubl.) Kuntze
  • Dendrorkis polydendris Thouars
  • Dendrorkis polystachyon Kuntze
  • Dendrorkis purpurea (Wight) Kuntze
  • Dendrorkis rufinula (Rchb.f.) Kuntze
  • Dendrorkis tessellata (Lindl.) Kuntze
  • Dendrorkis zollingeri (Rchb.f.) Kuntze
  • Epidendrum concretum Jacq.
  • Epidendrum minutum Aubl.
  • Maxillaria luteola Beer
  • Maxillaria purpurea (Wight) Beer
  • Onychium flavescens Blume
  • Polystachya buchananii Rolfe
  • Polystachya caquetana Schltr.
  • Polystachya colombiana Schltr.
  • Polystachya cubensis Schltr.
  • Polystachya dagremondiana Kraenzl.
  • Polystachya extinctoria Rchb.f.

and 35 more.

Flowers

In flower
April to January (from 80 flowering iNaturalist observations worldwide)

Characteristics

Growth habit
Forb/herb
Lifespan
Perennial
In the US and Canada
Lower 48 states: native, Puerto Rico: native, U.S. Virgin Islands: native

Photos

More in Polystachya

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.