Nipplebract arrowhead
Sagittaria papillosa
Alismataceae
Sagittaria papillosa
Alismataceae
Sagittaria papillosa, the nipplebract arrowhead, is a perennial plant species growing up to 120 centimetres (47 inches) tall. Petioles are triangular in cross-section, the leaf blade very narrowly elliptical to ovate, not lobed. The species is distinguished from others in the genus by having bumps (papillae) resembling nipples on the flower bracts. It is native to the south-central United States (Texas, Oklahoma, Louisiana, Arkansas and Mississippi). It grows in wet places such as marshes and the banks of lakes and slow-moving streams.
Streams and ponds in North America are often cool. How to set up an aquarium without a heater, with pygmy sunfish, shiners and darters.
Light, nutrients and CO₂ in balance, low tech versus high tech, and how to read from the leaves what your plants are missing.