21. The bulbs are small, and many are usually clustered together on a rhizomatous stock. 22. Satintail grass species are perennial rhizomatous herbs with solid, erect stems and silky inflorescences. 23. It is a rhizomatous perennial herb growing erect or leaning with a naked flowering stem. 24. This species is a rhizomatous perennial grass which can grow up to 10 feet tall. 25. Its rhizomatous roots are short and thick. 26. This rhizomatous perennial tolerates some sun. 27. This rhizomatous perennial grass produces narrow stems approaching a maximum height of 1.5 meters. 28. "Heuchera elegans " is a rhizomatous perennial herb with multi-lobed leaves. 29. "Lilium pyrophilum " produces a rhizomatous bulbous root system which is occasionally branched. 30. This rhizomatous perennial grass produces compressed, blue-green stems up to 75 centimeters tall.
