Maryland Native Plant Society will try to assist with carpool requests, but here are few things you can do to help:
1) When you register for an event, choose to have your registration be public. Then other registrants can try and contact you to carpool.
--Members, you may have to log in to your profile and change some of your privacy settings--
2) Go to http://mnps.erideshare.com/
and log in (Group password is MNPScarpool) and enter your request. This service is strictly based on member input--MNPS will not add an individual to this site.
3) While on field trips, introduce yourself to others and gather contact information for future trips.