Orchidaceae
Greater yellowspike orchid
Polystachya concreta
- Family
- Orchidaceae
- Genus
- Polystachya
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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

FlowerPhoto: Matteo Bellucci, CC BY 4.0, from iNaturalist 
FlowerPhoto: Marco Iboshi, CC BY 4.0, from iNaturalist 
FlowerPhoto: Brandon Corder, CC BY 4.0, from iNaturalist 
Photo: Maarten Sepp, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Turner Brockman, CC BY-SA 4.0, from iNaturalist 
Photo: Turner Brockman, CC BY-SA 4.0, from iNaturalist Photo: Yercaud-elango, CC BY-SA 4.0, from Wikimedia Commons 
Photo: naturedom12, CC0, from iNaturalist Photo: Yercaud-elango, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Thibaud Aronson, CC BY-SA 4.0, from iNaturalist Photo: Yercaud-elango, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Rebecca Johnson, CC BY 4.0, from iNaturalist
More in Polystachya
- Polystachya maculataOrchidaceae
- Polystachya bicalcarataOrchidaceae
- Polystachya victoriaeOrchidaceae
- Polystachya laxifloraOrchidaceae
- OrchidPolystachya superpositaOrchidaceae
- Polystachya alpinaOrchidaceae
- Polystachya bipodaOrchidaceae
- Polystachya camaridioidesOrchidaceae
- Polystachya cooperiOrchidaceae
- Lesser yellowspike orchidPolystachya foliosaOrchidaceae
- OrchidPolystachya geniculataOrchidaceae
- Polystachya kupensisOrchidaceae
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.