| 21. | Another surprise was Polygonum cuspidatum Crimson Beauty, a Mexican bamboo that clumps, instead of walking.
|
| 22. | "Polygonum fowleri " is a prostrate to ascending herb, often with zigzagged stems.
|
| 23. | "Polygonum striatulum " is a perennial herb that spreads by means of underground rhizomes.
|
| 24. | "Polygonum engelmannii " is an branching herb up to 30 cm ( 1 foot ) tall.
|
| 25. | In trampled areas where past livestock congregated, Himalayan knotweed " Polygonum polystachium " is a rampant weed.
|
| 26. | The oldest name available for this species is " Polygonum persicaria ", coined by Carl Linnaeus in 1753.
|
| 27. | Your invader is probably the weed Polygonum japonicum, formerly P . cuspidatum and commonly known as Japanese knotweed or Mexican bamboo.
|
| 28. | By 8 April Gray could not walk; he died on 17 April of dysentery at a place they called Polygonum Swamp.
|
| 29. | "Polygonum heterosepalum " is a short herb up to tall, forming mats that seem rather moss-like.
|
| 30. | "Polygonum achoreum " is an herb up to tall with yellow-green flowers in flat-topped clusters.
|
